Trig Identities
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Last updated 4:43 PM on 3/31/26
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23 Terms
1
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sin x
1/csc x
2
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csc x
1/sin x
3
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cos x
1/sec x
4
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sec x
1/cos x
5
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*tan x
1/ cot x
6
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*cot x
1/ tan x
7
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tan x
sin x/cos x
8
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cot x
cos x/sin x
9
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1
sin²x+cos²x
10
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\csc^2x
1+cot²x
11
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\sec^2x
tan²x+1
12
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sin (-x)
-sin x
13
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cos (-x)
cos x
14
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tan (-x)
-tan x
15
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csc (-x)
-csc x
16
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sec (-x)
sec x
17
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cot (-x)
-cot x
18
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\sin\left(\frac{\pi}{2}-x\right)
cos x
19
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\cos\left(\frac{\pi}{2}-x\right)
sin x
20
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\csc\left(\frac{\pi}{2}-x\right)
sec x
21
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\sec\left(\frac{\pi}{2}-x\right)
csc x
22
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\tan\left(\frac{\pi}{2}-x\right)
cot x
23
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\cot\left(\frac{\pi}{2}-x\right)
tan x
