初中三角函数计算题100道
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(1)sin 2
60°+cos 2
60 (2)o
o 45
sin 45cos -tan450
(3)cos45°-sin30° (4)sin 2300+cos 2300
(5)tan45°-sin30°·cos60° (6) 0
20
230
tan 45cos
(7)2sin300-cos450 (6)sin600cos600 (8)2sin30°+3cos60°-4tan45°
(9)cos30°sin45°+sin30°cos45° (10)0
0045
tan 260tan 1
60sin --
(11)3cos30°+2sin45° (12)2sin300+3sin600-4tan450
(13)tan300sin450+tan600cos450
(14)00045tan 260tan 1
30sin --
(15)
_______60cot 45tan _______,60cos 30sin 0
000=+=+;
(16)︒
-︒+︒+︒-︒30sin 30cos 30tan 41
45sin 60cos 22=________________
(17)0
00
045
tan 30tan 145tan 30tan ⋅-+
)60sin 45(cos 30sin 60
cos 2330cos 45sin 0
000
00---+
(19)s in 230°+cos 245°+2sin60°·tan45°; (20)22cos 30cos 60tan 60tan 30︒+︒
︒⨯︒
+ sin45°
(21)
(22)
(24)
(25)(26)(27)(28)(29)(30)(31)(32)
(33)
(34)
(35)
(36)
(37)
(38)
(39)
(40)sin45°+3tan30°+4cos30°
(41)cos260°-ta n45°+sin60°·tan60°.
(42)
(43)(44)
(45)
(46)
(47)
(48)
(49)(50)
(51)(52)(53)(54)(55)
(56)(57)(58)(59)(60)(61)
(62)(63)
(64)(65)(66)(67)(68)
(69)(70)
(71)(72)(73)(74)(75)(76)(77)
(78)(79)(80)(81)(82)(83)(84)
(85)(86)(87)(88)(89)
(90)(91)(92)(93)(94)(95)(96)(97)(98)(99)(100)37
(76):1 (77):2