Trig Identities
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Last updated 1:08 PM on 3/12/26
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20 Terms
1
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Sinx
1/cscx
2
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Cscx
1/sinx
3
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Cosx
1/secx
4
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Secx
1/cosx
5
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Tanx
1/cotx
6
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Cotx
1/tanx
7
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Tanx
Sinx/Cosx
8
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Cotx
Cosx/Sinx
9
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Sin²x+Cos²x
1
10
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Tan²x+1
Sec²x
11
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1+cot²x
Csc²x
12
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Sin(-x)
-sin(x)
13
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Csc(-x)
-Cscx
14
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Cos(-x)
Cosx
15
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Sec(-x)
Secx
16
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Tan(-x)
-Tanx
17
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Cot(-x)
-Cotx
18
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The find all values of cos
Add 2Πk
19
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To find all values for sin
Add Πk
20
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When you take the square root for all trig identities
You take the negative and positive of the square root
