Trig identities
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Last updated 11:59 PM on 10/30/22
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31 Terms
1
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1/sinØ
cscØ
2
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1/cosØ
secØ
3
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1/tanØ
cotØ
4
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1/cotØ
tanØ
5
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1/secØ
cosØ
6
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1/csc Ø
sinØ
7
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sinØ/cosØ
tanØ
8
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cosØ/sinØ
cotØ
9
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sin^2Ø+cos^2Ø
1
10
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1 + tan^2Ø
sec^2Ø
11
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cot^2Ø+1
csc^2Ø
12
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sin(π/2 -Ø)
cosØ
13
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cos(π/2 -Ø)
sinØ
14
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tan(π/2 -Ø)
cotØ
15
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cot(π/2 -Ø)
tanØ
16
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sec(π/2 -Ø)
cscØ
17
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csc(π/2 -Ø)
secØ
18
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sin(-Ø)
-sinØ
19
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cos(-Ø)
cosØ
20
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tan(-Ø)
-tanØ
21
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cot(-Ø)
-cotØ
22
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sec(-Ø)
secØ
23
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csc(-Ø)
-cscØ
24
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sin 2Ø
2sinØcosØ
25
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cos2Ø
cos^2 Ø- sin^2 Ø
26
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cos2Ø
2cos^2 Ø-1
27
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cos2Ø
1-2sin^2 Ø
28
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tan2Ø
2tanØ/1-tan^2 Ø
29
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sin(u+-v)
sin u cos v + cos u sin v
30
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Cos (u+- v)
cos u cosv -+ sin u sin v
31
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tan(u+-v)
tanu+-tanv/1-+tanutanv