gre数学考试关于几何的重点试题

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gre数学考试关于几何的重点试题

gre数学考试关于几何的重点试题

gre数学考试关于几何的重点试题1. If the areas of three of the faces of a rectangular solid are 6,10 and 15, what is the volume of the solid?A.30B.90C.150D.300E.450答案:A2.△RST lies in the XY-plane and points R and T have (x, y) coordinates (0,0) and (6,0), respectively. The area of △RST is 12.The x-coordinate of RThe y-coordinate of S答案:D3.What is the maximum number of nonover-lapping regions into which 3 lines can divide the interior of a circle?A.4B.6C.7D.8E.9答案:C4.The rectangular rug shown in the figure above has a floral border 1 foo t wide on all sides. What is the area, in square feet, of that portion of the rug that excludes the border?A.28B.40C.45D.48E.53答案:A5. The diagram represents a rectangular garden. The shaded regions are planted in flowers, and the unshaded region is a walk 2 feet wide. All angles are right angles.The sum of the areas of the shaded regions2,800 square feet答案:D6.What are the coordinates of point B in the xy-plane above?A.(6,12)B.(6,28)C.(8,20)D.(12,20)E.(14,28)答案:B7.If 9 trees are originally planted in a circular pattern as shown above, what is the least number of trees that must be transplanted so that the 9 trees will be in 2 straight rows?A.4B.5C.6D.7E.8答案:B8.If the sum of the measures of two angles is 180o,each angle is a supplement of the other, whereas, if the sum oftheir measures is 90o, each is a complement of the other.The measure of an angle with a supplement that measures 130o The measure of an angle with a supplement that measures 40o 答案:C9.If a solid pyramid has 4 vertices and 4 faces, how many edges does the pyramid have?A.2B.3C.4D.6E.8答案:D10.A rectangular floor with an area of 12 square meters is drawn to scale with 2 centimeters representing 1 meter.The area of the scale drawing of the floor24 square centimeters答案:A11.In the rectangular coordinate system, line k passes through the point (0,0) and (4,8); line m passes through the points (0,1) and (4,9).The slope of line kThe slope of line m答案:C12.In the stop sign shown in the figure above, all sides have equal length and all angles have equal measure. If the figure could be rotated 225 degrees in a clockwise direction, point G would be in the position of point.A.IB.JC.KD.LE.M答案:B13.What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with each side of length 6?A.5/6B.4/5C.3/4D.2/3E.5/8答案:E14.A circular flower bed is inscribed in a flat, square garden plot that measures x meters on each side.The fraction of the garden plot area that is not part of the flower bed if x=50 metersThe fraction of the garden plot area that is not part of the flower bed if x=45 meters答案:C15.The dimensions, in centimeters, of rectangular box R are 6 by 8 by 10. Which of the following cannot be the total surface area, in square centimeters, of two faces of R?A.96B.120C.128D.160E.180答案:E16.The figure above shows a large square formed by fitting three L- shaped tiles and one small square tile together. If a rectangular floor 10 feet by 12 feet is to be tiled in large squares of this design, how many L-shaped tiles will be needed?A.810B.405C.270D.135E.45答案:A17.A certain rectangle has perimeter 54. If the ratio of the length of the rectangle to the width is 5 to 4, what is the length of the rectangle?A.30B.27C.24D.18E.15答案:E18.In the rectangular coordinate system above, the coordinates of points A and B are shown. If the dotted lines representa second pair of coordinate axes with origin at A, and if the scale is the same on both pairs of axes, what are the coordinat es of point B with respect to the second pair of axes?A.(-33,88)B.(33,48)C.(33,-48)D.(97,88)E.(97,-88)答案:C19. If the perimeter of the rectangle above is 36, then l=A.9B.14C.16D.28E.32答案:B20.If the perimeter of a triangle is 18, then the length of one of the sides cannot beA.1B.3C.6D.8E.9答案:E21.In the figure above, if ABCD is a parallelogram with A at the origin, what are the coordinates of C?A.(6,5)B.(6,6)C.(7,4)D.(8,5)E.(8,6)答案:A22.What fraction of a cubic meter is the volume of a cubic block of stone with edge of length 10 centimeters?(1 meter=100centimeters)A.3/10B.1/10C.1/30D.1/100E.1/1000答案:E23.In the rectangular coordinate system above, for how many of the points that lie inside or on the boundary of the shaded region are both coordinates integers?A.sixB.sevenC.eightD.nineE.ten答案:E24. A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop if x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?A.12B.10C.9D.8E.6答案:E25.In the coordinate plane, points A and B are endpoints of a diameter of a circle with center (-2,1). If the coordinates of A are (-5,5), what are the coordinates of B?A.(0,0)B.(3,-2)C.(3,-1)D.(2,-2)E.(1,-3)答案:E26.Three solid cubes of lead, each with edges 10 centimeters long, are melted together in a level, r ectangular shaped pan. The base of the pan has inside dimensions of 20 centimeters by 30 centimeters, and the pan is 15 centimeters deep. If the volume of the solid lead is approximately the same as the volume of the melted lead, approximately how many cen timeters deep is the melted lead in the pan?A.2.5B.3C.5D.7.5E.9答案:C27.In the figure above, if x, y, and z are integers such that xA.59 and 91B.59 and 135C.91 and 178D.120 and 135E.120 and 178答案:C28.In the rectangular coordinate system above, if P, not shown, is a point AB and if the x-coordinate of P is 1, what is the y-coordinate of P?A.4/3B.3/2C.7/3D.5/2E.8/3答案:A29.There are six marked points on the circle above. How many different lines can be drawn that contain two of the marked points?A.5B.6C.12D.15E.30答案:D30.In the figure above, ABCD is a square. What are the coordinates of point B?A.(-4,2)B.(-2,4)C.(-2,6)D.(4,-6)E.(6,-2) 答案:C。

2024 GRE考试数学专题历年真题全面解读

2024 GRE考试数学专题历年真题全面解读

2024 GRE考试数学专题历年真题全面解读
GRE考试是许多留学生前往美国深造的必经之路,其中数学部分是
许多考生感到头疼的一部分。

为了帮助广大考生更好地准备数学部分,本文将对2024年GRE考试数学部分的历年真题进行全面解读,帮助
考生们更好地了解考试内容和解答技巧。

1. 真题一
题目描述:...
解析:...
2. 真题二
题目描述:...
解析:...
通过对数学专题的历年真题解析,可以发现一些解答技巧和备考建议:
首先,对于考试中出现的各类型题目,我们需要充分掌握数学的基
本概念和公式,扎实地掌握基础知识是解题的前提。

其次,针对每种题型,我们需要熟悉常用的解题方法和技巧。

例如,在解决几何问题时,我们可以通过绘制图形、利用相似三角形等方法
快速推导出结论;在解决代数问题时,我们可以利用因式分解、配方
法等技巧简化计算过程。

此外,在备考过程中,我们还需要进行大量的练习,并针对做错的题目进行分析和总结,找出自己的薄弱环节,并有针对性地进行强化复习。

最后,考试前的冲刺阶段,我们可以通过参加模拟考试来熟悉考试环境和时间分配,进一步增加解题速度和准确性。

总结一下,对于2024年GRE考试的数学部分,熟练掌握基础知识和解题技巧是关键。

通过对历年真题的全面解读和充分的准备,相信广大考生们一定能在考试中取得优异的成绩。

祝愿各位考生取得理想的分数!。

gre数学经典难题

gre数学经典难题

gre数学经典难题
一些经典的GRE数学难题包括:
1. 在一个圆形花园四周围有一条路径,该路径有固定的宽度,以米为单位。

如果路径的宽度是2米,花园的直径是10米,
则路径的面积是多少?
2. 一辆汽车以每小时40英里的速度行驶了3个小时。

如果在
此后的旅程中汽车以每小时60英里的速度行驶,那么整个旅
程的平均速度是多少英里/小时?
3. 若一个正整数n除以14余9,且n除以21余15,则n除以35余几?
4. 一个圆形的湖泊中有一块小岛,小岛上有一个塔。

从湖畔的一个距离塔20米的观景台向小岛上的塔测量,得到的角度是
30度。

从湖畔另一个距离塔30米的观景台向塔测量,得到的
角度是60度。

那么,小岛上的塔的高度是多少米?
这些问题涵盖了几个不同的数学概念,如几何、代数和比例等。

通过解决这些难题,可以提高数学逻辑思维和解题能力。

有关圆的GRE数学考试题

有关圆的GRE数学考试题

有关圆的GRE数学考试题以下是小编为大家整理的有关圆的GRE数学考试题,希望对广大考生GRE数学复习有帮助,需要的同学赶快下载吧。

1、有一个图是两个圆外切的,大圆的面积是小圆面积的2倍,大圆面积是π,问圆心距是多少?答:根据题意,这两个圆应该相邻,大圆半径是1,小圆半径=1/根号2,1+1/根22、有个圆,里面有内接矩形,让你求举行面积有一个图是两个圆外切的,大圆的面积是小圆面积的2倍,大圆面积是pi,问圆心距是多少?答案:选1+2分之根号23、Sol: Let 大圆直径为D1,小圆直径为D2, So the difference: Pi(D1-D2)=Pi(10) 约31.44、两个同心圆,内外圆半径差5inch,问周长差。

答案:305、有个算半径说的是左边的圆是右边圆面积的两倍她的面积是π然后问他们圆心连线的长度 1+1/根2答:根据题意,这两个圆应该相邻,大圆半径是1,小圆半径=1/根号26、一个圆,过(0,0),(10,0),(-5,5),然后是半径和一个数字比较,好像是选相等,反正把半径算出来应该就没问题7、一个圆的半径过点(0,0),(0,10),(5,-5),问这个圆的半径和跟号5哪个大哪个小? 选A8、两个圆的圆心分别是O和P,圆1以O为圆心并且过点P,圆2以P为圆心并且在O点之外,提问:圆1和圆2的半径比大小(求答案补全)1 要给一个圆形的花园加围墙,已知花园从左到右最大长是**(求补全),求这个围墙的周长?9、一个圆内接长方形长2x,宽x,给了圆的周长,求长方形的面积 ;答:圆周长=C,对角线=X*根号5=d=2r,C= X*根号5*pi。

可算出X面积=2X^2=2C^2/5pi^210、5个圆叠在一起半径分别为R, 2R,3R,4R,5R 求3R为半径圆面积和最外面的圆环面积比较。

11、一个圆周长为PAI (打不来)的圆面积和 4分之一PAI 做比较,相等!12、边长为2的等边三角形,以三个顶点为圆心各画1一个半径为1的圆,中间截出来出来的面积是阴影部分,求因为阴影部分面积和4分之根号3,哪个大。

gre考试数学真题试卷

gre考试数学真题试卷

gre考试数学真题试卷GRE考试数学真题试卷一、选择题(每题1分,共20分)1. If the function f(x) = 3x^2 - 2x + 1, what is the value of f(1)?A. 0B. 2C. 3D. 4E. 52. What is the derivative of the function g(x) = 4x^3 - x^2 + 7?A. 12x^2 - 2xB. 12x^2 + 2xC. 12x^3 - 2xD. 12x^3 + 2xE. 12x^3 - 2x^23. The area under the curve of y = x^2 from x = 0 to x = 2 is:A. 2B. 4C. 8D. 10E. 124. If a and b are the roots of the quadratic equation x^2 +5x + 6 = 0, what is the value of a + b?A. -3B. -2C. -1D. 0E. 15. The slope of the line passing through the points (2, 3) and (4, 7) is:A. 1B. 2C. 3D. 4E. 56. What is the value of sin(30°)?A. 1/2B. √2/2C. √3/2D. 2/√3E. 1/√27. The integral of the function h(x) = 3x + 2 is:A. x^3 + 2x + CB. x^3 + 2x^2 + CC. x^2 + 2x + CD. 3x^2 + 2x + CE. 3x^2 + 2x^3 + C8. The equation of a circle with center (3, 4) and radius 5 is:A. (x - 3)^2 + (y - 4)^2 = 25B. (x - 3)^2 + (y - 4)^2 = 1C. (x - 3)^2 + (y - 4)^2 = 100D. (x - 3)^2 + (y - 4)^2 = 625E. (x - 3)^2 + (y - 4)^2 = 09. The volume of a sphere with radius 4 is:A. 256πB. 512πC. 1024πD. 2048πE. 4096π10. If the sequence 2, 6, 18, 54, ... is a geometric sequence, what is the common ratio?A. 2B. 3C. 4D. 5E. 6二、填空题(每题2分,共20分)11. If the sum of the first n terms of an arithmetic sequence is given by S_n = n^2, then the 5th term of the sequence is__________.12. The equation of the line perpendicular to y = 2x - 1 and passing through the point (1, 3) is __________.13. The value of the definite integral ∫(0 to 1) x^2 dx is__________.14. If the function f(x) = sin(x) + cos(x), then f''(x) is__________.15. The area of a triangle with vertices at (0,0), (3,0), and (0,4) is __________.16. The limit of the function (1 + 1/n)^n as n approaches infinity is __________.17. The value of e^(iπ) is __________.18. The standard deviation of the data set {2, 4, 6, 8, 10} is __________.19. If a fair coin is tossed 5 times, the probability of getting exactly 3 heads is __________.20. The value of the binomial coefficient C(n, k) when。

2024 GRE考试必备数学历年真题练习

2024 GRE考试必备数学历年真题练习

2024 GRE考试必备数学历年真题练习在GRE数学部分的备考过程中,历年真题的练习是非常重要的一环。

通过针对性的练习,考生可以熟悉考试题型,了解考点,提升解题速度和准确性。

本文将为大家提供2024年GRE考试的数学历年真题练习,帮助考生更好地备考。

1. 整数1.1 题目选择下列哪个数是正偶数?(A) -12(B) -5(C) 0(D) 9(E) 271.2 解析正偶数是指能够被2整除的正整数。

从选项中排除负数,在0和正数中,只有0能够被2整除,因此答案选(C)。

2. 几何2.1 题目下图中,正方形ABCD的边长为3。

点E是线段BC的中点,点F是线段BD上的一点,且AF的长度为3。

求射线AF与线段CE的交点P到点E的距离。

[图片描述:一个正方形ABCD,边长为3,线段BC的中点为E,线段BD上的一点为F,AF的长度为3]2.2 解析首先,可以得出正方形ABCD的对角线AC的长度为3的开平方乘以2,即AC=3乘以根号2。

由于AE与CF平行且等长,射线AF可以看作与线段BE平行且等长。

因此,三角形BEP是等腰直角三角形,所以BP = EP = EC的一半。

又因为BC=3,所以EC=3/2。

因此,点P到点E的距离为1.5个单位。

3. 概率与统计3.1 题目某次测试的成绩服从正态分布,平均成绩为80分,标准差为5分。

已知一个学生的成绩在85分以上的概率为0.841,求这个学生的成绩。

3.2 解析根据正态分布的性质,均值加上标准差得到的分数对应的概率是大约0.841。

因此,这个学生的成绩应该在平均成绩80分加上标准差5分的位置,即85分。

通过以上三个部分的例题,希望能够帮助到考生更好地了解2024年GRE考试数学部分的题型和解题思路。

在备考过程中,考生还需深入学习数学知识,掌握解题技巧,并进行大量真题练习,提升解题能力。

祝愿各位考生在考试中取得好成绩!。

GRE数学几何部分考题练习

GRE数学几何部分考题练习

GRE数学几何部分考题练习在备考GRE数学过程中,试题是必不可少的,本文为大家提供GRE数学几何试题,后面附有答案。

1. If the areas of three of the faces of a rectangular solid are 6,10 and 15, what is the volume of the solid?A.30B.90C.150D.300E.450答案:A2.△RST lies in the XY-plane and points R and T have (x, y) coordinates (0,0) and (6,0), respectively. The area of △RST is 12.The x-coordinate of RThe y-coordinate of S答案:D3.What is the maximum number of nonover-lapping regions into which 3 lines can divide the interior of a circle?A.4B.6C.7D.8E.9答案:C4.In the rectangular coordinate system, line k passes through the point (0,0) and (4,8); line m passes through the points (0,1) and (4,9).The slope of line kThe slope of line m答案:C5.In the stop sign shown in the figure above, all sides have equal length and all angles have equal measure. If the figure could be rotated 225 degrees in a clockwise direction, point G would be in the position of point.A.IB.JC.KD.LE.M答案:B6.What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with each side of length 6?A.5/6B.4/5C.3/4D.2/3E.5/8答案:E编辑为大家整理了新GRE考试数学几何部分相关的考题,各位GRE考生可进行练习。

2024年GRE考试数学真题深度解读

2024年GRE考试数学真题深度解读

2024年GRE考试数学真题深度解读在2024年的GRE考试中,数学部分的题目一直是考生们比较关注的一个方面。

本文将对2024年GRE考试数学部分的真题进行深度解读,帮助考生们更好地应对这一考试内容。

以下是对一些典型题目的解析和详细讲解。

题目一:计算方程的解设方程2x + 5 = 15,求x的解。

解析:这是一个简单的一元一次方程,可以通过移项和化简求解。

将方程变形,得到2x = 15 - 5,进一步计算可得2x = 10。

最后,将方程化简为x = 10 / 2,即x = 5。

因此,方程2x + 5 = 15的解为x = 5。

题目二:几何图形的面积计算已知一个正方形的周长等于24cm,求其面积。

解析:正方形的周长等于4条边的长度之和,因此设每条边长为x,则有4x = 24。

将方程化简可得x = 24 / 4,即x = 6。

正方形的面积等于边长的平方,因此面积为6 * 6 = 36 平方厘米。

所以,该正方形的面积为36平方厘米。

题目三:概率计算一枚硬币投掷三次,出现正面的次数大于等于2次的概率是多少?解析:对于一次硬币投掷,它的结果只有两种可能:正面朝上或反面朝上,因此该事件是一个二项分布。

投掷三次硬币,出现正面大于等于2次的情况有3种可能情况:正正正、正正反和正反正。

因此,概率 = P(正正正) + P(正正反) + P(正反正)。

每一种可能性的概率为1/2 * 1/2 * 1/2 = 1/8。

将所有概率相加,得到概率为3/8。

所以,出现正面大于等于2次的概率是3/8。

通过对以上三个题目的解析,可以看出2024年GRE考试数学部分的难度适中,考察的内容主要涵盖了代数、几何和概率等基础知识。

在备考过程中,考生们应该注重对这些基础知识的扎实掌握,并且要能够将这些知识应用于解决实际问题。

除了对基础知识的理解和掌握外,考生们还需要注重解题的方法和步骤。

不同的题目可能需要不同的解题思路,因此在备考中要注重总结各种解题方法,并且进行反复练习和巩固。

2011新GRE-数学满分不容易-要胆大心细

2011新GRE-数学满分不容易-要胆大心细

1. l1, l2 and l3 are three lines in spaceThe number of points at The number of points atwhich lines l1 and l2 intersect which lines l2 and l3 intersect1。

三条任意直线,L1和L2的交点的个数与L2和L3的交点的个数没关。

2. The number of 1/4-inch lengths in 1a 4-inch length2,是问4英尺中有多少个1/4英尺,应该是16个,所以是A3. The maximun number of solid cubes 4having edges of length 1/2 meter thatcan be placed inside a cubical boxhaving inside edges of length 1 meter3边长为1的立方体里最多能放下几个边长为1/2的立方体,当然是8个咯4. Cube C has volume 8 cubic centimetersThe area of one of the faces of cube C 3 square centimeters4立方体体积是8,那一个面的面积当然是4咯5. Ms.Smith got an 8 percent cost-of-living raise of $20 per weekMs.Smith's new weekly salary $2605 x*0.08=20,那x+20=270>2606. On a certain number live, if -7 is a distance of 4 from n and 7 is a distance of 18from n then n=A.25B.11C.3D.-3 E-116应该是-117. For all real numbers a and b. if a•b=a(a+b), then a•(a•b)=A. a2+ab B a2+ab+a C a2+a+b D a3+a2b E a3+a2b+a2注:a2表示a平方,a3表示a立方7新定义的运算a•b=a(a+b), 那a•(a•b)=a•(aa+ab)=a(a+aa+ab)=aa+aaa+aab8.secretary typed 6 letters,each of which had either 1 or 2 pages.If the secretary typed 10 pages in all, how many of the letters had 2 pages?A 1B 2C 3D 4E 5答案是D,题目我都看不懂,是啥意思呢?这是说秘书打六封信,没一封信要1页或者两页。

gre练习题

gre练习题

gre练习题GRE(Graduate Record Examinations)是一项广泛用于研究生院入学申请的标准化考试,它包括了数学、阅读和写作三个部分。

以下是一些模拟练习题,可以帮助你准备GRE考试。

# 数学部分练习题1. 整数问题如果一个整数除以4余1,除以5余1,那么这个整数加1后一定是5的倍数。

这种说法正确吗?为什么?2. 百分比问题如果一个商品打8折后的价格是原价的80%,那么原价与打折后价格的差额占原价的百分比是多少?3. 几何问题一个圆的半径是10厘米,求这个圆的面积。

4. 代数问题如果方程 \( ax^2 + bx + c = 0 \) 有两个实数根,且 \( a \), \( b \), \( c \) 都是正数,那么 \( b^2 - 4ac \) 必须大于、等于还是小于0?5. 概率问题一个袋子里有5个红球和3个蓝球。

如果随机抽取2个球,至少有一个是红球的概率是多少?# 阅读部分练习题1. 主旨大意题阅读以下段落,并概括其主旨大意:"In recent years, the debate over the role of technologyin education has intensified. Advocates argue that incorporating technology into the classroom can enhance learning experiences and prepare students for the digital age. Critics, on the other hand, contend that an over-reliance on technology can detract from critical thinking andinterpersonal skills."2. 推断题根据上述段落,推断作者可能对技术在教育中的作用持什么态度?3. 词汇题段落中提到的“enhance”一词,最接近的同义词是什么?4. 细节理解题根据段落,哪些论点是支持者提出的?哪些是批评者提出的?5. 逻辑关系题段落中提到的两种观点之间存在什么逻辑关系?# 写作部分练习题1. 论证有效性分析阅读以下论证:“由于越来越多的人选择在线购物,实体店铺将很快消失。

2024 GRE考试专题数学历年真题集锦

2024 GRE考试专题数学历年真题集锦

2024 GRE考试专题数学历年真题集锦GRE考试是对申请美国研究生院的学生进行综合能力测试的重要方式之一。

其中,数学部分是考生必须重点准备和应对的内容之一。

为了帮助考生更好地备考,本文整理了2024年GRE考试数学部分的历年真题集锦,供考生参考和复习使用。

一、整数和1. 如果a和b都是正整数,且a + b = 8,那么a和b可能的取值有哪些?答案:(1, 7), (2, 6), (3, 5), (4, 4)2. 如果m和n都是正整数,且m - n = 14,那么m和n的最小公倍数是多少?答案:28二、几何1. 一根长为10英尺的绳子被剪成两段,使得其中一段的长度是另外一段的2倍。

求较短一段的长度。

答案:4英尺2. 一个半径为5的圆与一个半径为8的圆相切于一点,并且两个圆的圆心之间的距离为13。

求两个圆相切点之间的距离。

答案:12三、代数1. 如果a是一个正整数,并且a^2 - 5a + 6 = 0,那么a的值是多少?答案:2或32. 设a、b、c是正整数,且满足a + b = c。

若a能被5整除,c能被9整除,那么b能被几整除?答案:4四、概率与统计1. 在一个有10个数字的集合中,每一个数字都是从1到10中随机选取的,那么从这个集合中选取一个数字,并且这个数字是偶数的概率是多少?答案:1/22. 一张标准扑克牌中红桃的数量为13,黑桃的数量为13。

从扑克牌中随机抽取一张牌,那么这张牌为红桃或黑桃的概率是多少?答案:26/52 = 1/2通过以上历年真题的集锦,考生可以更好地理解GRE数学部分的题目类型和解题思路。

每个题目的解答都提供了详细的答案,考生可以通过演算来验证答案的正确性,并进行自我评估。

为了顺利完成GRE考试,考生需要做到以下几点:首先,掌握基础知识。

GRE数学部分主要考察考生对数学基本概念和方法的理解和运用能力。

因此,考生需要熟悉数学基本概念和公式,同时要能够快速准确地运用这些概念和公式解题。

2024年GRE考试数学历年题目全扫描

2024年GRE考试数学历年题目全扫描

2024年GRE考试数学历年题目全扫描2024年GRE考试数学题目全扫描2024年的GRE考试即将到来,对于准备参加考试的同学们来说,熟悉历年的数学题目是非常重要的。

本文将为大家带来2024年GRE考试数学部分历年题目的详细分析与解答,帮助大家更好地准备考试。

第一部分:代数与函数题目一:已知函数f(x)满足f(x+3)=f(x)+9,且f(1)=7,求f(10)的值。

解析:根据题目条件,我们可以通过逐步迭代来求解。

首先计算f(4) =f(1+3) = f(1) + 9 = 7 + 9 = 16。

接着计算f(7) = f(4+3) = f(4) + 9 = 16 + 9 = 25。

最后计算f(10) = f(7+3) = f(7) + 9 = 25 + 9 = 34。

因此,f(10)的值为34。

题目二:已知函数f(x)满足f(2x) = 4f(x) - 1,且f(1) = 2,求f(8)的值。

解析:我们可以通过逐步迭代来解题。

首先计算f(2) = 4f(1) - 1 = 4*2 - 1 = 7。

接下来计算f(4) = 4f(2) - 1 = 4*7 - 1 = 27。

最后计算f(8) = 4f(4) - 1 = 4*27 - 1 = 107。

因此,f(8)的值为107。

第二部分:几何与概率题目三:在平面直角坐标系中,直线L1过点A(2, 5)且斜率为3,直线L2过点B(4, -1)且垂直于直线L1,求直线L2的方程。

解析:由直线L1的斜率3可知,直线L2的斜率为-1/3(直线L1和L2互为垂直的关系)。

通过点斜式得到直线L2的方程为y - (-1) = -1/3(x - 4)。

化简可得,y = -1/3x + 5/3。

题目四:设随机变量X服从正态分布N(3, 1),求P(X > 4)的值。

解析:根据正态分布性质,需要计算X > 4的概率。

首先计算标准化得分z = (4 - 3) / 1 = 1。

2023年GRE数学考试题目及解析(完整打印版)

2023年GRE数学考试题目及解析(完整打印版)

2023年GRE数学考试题目及解析(完整打印版)第一部分:数学基础1. 题目:求解方程给定方程:2x + 5 = 11,求解x的值。

解析:将方程重写为:2x = 11 - 5。

计算得出:2x = 6。

继续计算得出:x = 6 / 2。

最终解得:x = 3。

2. 题目:求解等差数列的和已知等差数列的首项为3,公差为2,共有10个项,求该等差数列的和。

解析:首先,可以使用公式求解等差数列的和:Sn = n/2 * [2a + (n-1)d]。

代入已知值:n = 10,a = 3,d = 2。

计算得出:Sn = 10/2 * [2*3 + (10-1)*2]。

继续计算得出:Sn = 5 * (6 + 18)。

最终解得:Sn = 120。

第二部分:几何图形3. 题目:计算三角形面积已知三角形的底边长为5,高为8,求三角形的面积。

解析:三角形的面积可以通过公式计算:A = 1/2 * 底边长 * 高。

代入已知值:底边长 = 5,高 = 8。

计算得出:A = 1/2 * 5 * 8。

最终解得:A = 20。

4. 题目:计算圆的周长已知圆的半径为4,求圆的周长。

解析:圆的周长可以通过公式计算:C = 2 * π * 半径。

代入已知值:半径 = 4,π取3.14。

计算得出:C = 2 * 3.14 * 4。

最终解得:C = 25.12。

第三部分:数据分析5. 题目:计算平均数已知一组数据为:5, 8, 6, 12, 9,求这组数据的平均数。

解析:计算平均数的公式为:平均数 = 数据总和 / 数据个数。

代入已知值:数据总和 = 5 + 8 + 6 + 12 + 9,数据个数 = 5。

计算得出:平均数 = (5 + 8 + 6 + 12 + 9) / 5。

最终解得:平均数 = 8。

6. 题目:计算中位数已知一组数据为:2, 5, 8, 11, 15,求这组数据的中位数。

解析:首先对数据进行排序:2, 5, 8, 11, 15。

【天道】GRE数学重点试题-答案版

【天道】GRE数学重点试题-答案版

算术新gre改革,很多考生都觉得难,如果觉得复习GRE数学考试比较难不妨从这些题目练习开始,每篇都是按照分类给大家列举了一些典型题目,本篇主要是针对GRE数学考试算术方面的典型题目及答案。

比较大小A. If the quantity in column A is greater;B. If the quantity in column B is greater;C. If the two quantities are equal;D. if the relationship cannot be determined from the information given.题目:1.How many positive whole numbers less than 81 are not equal squares of whole numbers?A.9B.70C.71D.72E.73答案:D2. 23(784)24(783)答案:B3.A printer numbered consecutively the pages of a book, beginning with 1 on the first page. In numbering the pages, he printed a total of 189 digits.The number of pages in the book100答案:B4. m,p, and x are positive integers and mp=x.mx答案:D5.n=7*193The number of distinct positive factors of n10答案:B6.Seven is equal to how many thirds of seven?A.1/3B.1C.3D.7E.21答案:C7.How many positive integers less than 20 are equal to the sum of a positive multiple of 3 and a positive multiple of 4?A.2B.5C.7D.10答案:D8.5/2 percent of 112022*7答案:C9.The figure above consists of 25 squares. If the figure were folded along the dotted diagonal to forn a flat triangle, then 26 minus the number in the square that would coincide with the square containing 26 would beA.13B.14C.15D.16E.17答案:D10.What is the remainder when 63 is divided by 8?A.5B.3C.2E.0答案:E每道题目都是关于gre数学考试的典型题目,考生可以根据题目来复习知识点,这样更有针对性。

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gre数学考试关于几何的重点试题1. If the areas of three of the faces of a rectangular solid are 6,10 and 15, what is the volume of the solid?A.30B.90C.150D.300E.450答案:A2.△RST lies in the XY-plane and points R and T have (x, y) coordinates (0,0) and (6,0), respectively. The area of △RST is 12.The x-coordinate of RThe y-coordinate of S答案:D3.What is the maximum number of nonover-lapping regions into which 3 lines can divide the interior of a circle?A.4B.6C.7D.8E.9答案:C4.The rectangular rug shown in the figure above has a floral border 1 foo t wide on all sides. What is the area, in square feet, of that portion of the rug that excludes the border?A.28B.40C.45D.48E.53答案:A5. The diagram represents a rectangular garden. The shaded regions are planted in flowers, and the unshaded region is a walk 2 feet wide. All angles are right angles.The sum of the areas of the shaded regions2,800 square feet答案:D6.What are the coordinates of point B in the xy-plane above?A.(6,12)B.(6,28)C.(8,20)D.(12,20)E.(14,28)答案:B7.If 9 trees are originally planted in a circular pattern as shown above, what is the least number of trees that must be transplanted so that the 9 trees will be in 2 straight rows?A.4B.5C.6D.7E.8答案:B8.If the sum of the measures of two angles is 180o,each angle is a supplement of the other, whereas, if the sum oftheir measures is 90o, each is a complement of the other.The measure of an angle with a supplement that measures 130o The measure of an angle with a supplement that measures 40o 答案:C9.If a solid pyramid has 4 vertices and 4 faces, how many edges does the pyramid have?A.2B.3C.4D.6E.8答案:D10.A rectangular floor with an area of 12 square meters is drawn to scale with 2 centimeters representing 1 meter.The area of the scale drawing of the floor24 square centimeters答案:A11.In the rectangular coordinate system, line k passes through the point (0,0) and (4,8); line m passes through the points (0,1) and (4,9).The slope of line kThe slope of line m答案:C12.In the stop sign shown in the figure above, all sides have equal length and all angles have equal measure. If the figure could be rotated 225 degrees in a clockwise direction, point G would be in the position of point.A.IB.JC.KD.LE.M答案:B13.What is the ratio of the perimeter of a pentagon with each side of length 6 to the perimeter of an octagon with each side of length 6?A.5/6B.4/5C.3/4D.2/3E.5/8答案:E14.A circular flower bed is inscribed in a flat, square garden plot that measures x meters on each side.The fraction of the garden plot area that is not part of the flower bed if x=50 metersThe fraction of the garden plot area that is not part of the flower bed if x=45 meters答案:C15.The dimensions, in centimeters, of rectangular box R are 6 by 8 by 10. Which of the following cannot be the total surface area, in square centimeters, of two faces of R?A.96B.120C.128D.160E.180答案:E16.The figure above shows a large square formed by fitting three L- shaped tiles and one small square tile together. If a rectangular floor 10 feet by 12 feet is to be tiled in large squares of this design, how many L-shaped tiles will be needed?A.810B.405C.270D.135E.45答案:A17.A certain rectangle has perimeter 54. If the ratio of the length of the rectangle to the width is 5 to 4, what is the length of the rectangle?A.30B.27C.24D.18E.15答案:E18.In the rectangular coordinate system above, the coordinates of points A and B are shown. If the dotted lines representa second pair of coordinate axes with origin at A, and if the scale is the same on both pairs of axes, what are the coordinat es of point B with respect to the second pair of axes?A.(-33,88)B.(33,48)C.(33,-48)D.(97,88)E.(97,-88)答案:C19. If the perimeter of the rectangle above is 36, then l=A.9B.14C.16D.28E.32答案:B20.If the perimeter of a triangle is 18, then the length of one of the sides cannot beA.1B.3C.6D.8E.9答案:E21.In the figure above, if ABCD is a parallelogram with A at the origin, what are the coordinates of C?A.(6,5)B.(6,6)C.(7,4)D.(8,5)E.(8,6)答案:A22.What fraction of a cubic meter is the volume of a cubic block of stone with edge of length 10 centimeters?(1 meter=100centimeters)A.3/10B.1/10C.1/30D.1/100E.1/1000答案:E23.In the rectangular coordinate system above, for how many of the points that lie inside or on the boundary of the shaded region are both coordinates integers?A.sixB.sevenC.eightD.nineE.ten答案:E24. A rectangular tabletop consists of a piece of laminated wood bordered by a thin metal strip along its four edges. The surface area of the tabletop if x square feet, and the total length of the strip before it was attached was x feet. If the tabletop is 3 feet wide, what is its approximate length, in feet?A.12B.10C.9D.8E.6答案:E25.In the coordinate plane, points A and B are endpoints of a diameter of a circle with center (-2,1). If the coordinates of A are (-5,5), what are the coordinates of B?A.(0,0)B.(3,-2)C.(3,-1)D.(2,-2)E.(1,-3)答案:E26.Three solid cubes of lead, each with edges 10 centimeters long, are melted together in a level, r ectangular shaped pan. The base of the pan has inside dimensions of 20 centimeters by 30 centimeters, and the pan is 15 centimeters deep. If the volume of the solid lead is approximately the same as the volume of the melted lead, approximately how many cen timeters deep is the melted lead in the pan?A.2.5B.3C.5D.7.5E.9答案:C27.In the figure above, if x, y, and z are integers such that xA.59 and 91B.59 and 135C.91 and 178D.120 and 135E.120 and 178答案:C28.In the rectangular coordinate system above, if P, not shown, is a point AB and if the x-coordinate of P is 1, what is the y-coordinate of P?A.4/3B.3/2C.7/3D.5/2E.8/3答案:A29.There are six marked points on the circle above. How many different lines can be drawn that contain two of the marked points?A.5B.6C.12D.15E.30答案:D30.In the figure above, ABCD is a square. What are the coordinates of point B?A.(-4,2)B.(-2,4)C.(-2,6)D.(4,-6)E.(6,-2) 答案:C。

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