Trig Identities
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20 Terms
1
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sinx*cscx
1 (reciprocal)
2
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cosx*secx
1 (reciprocal)
3
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tanx*cotx
1 (reciprocal)
4
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(sinx)/(cosx)
tanx (quotient)
5
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(cosx)/(sinx)
cotx (quotient)
6
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sin^2x+cos^2x
1 (Pythagorean)
7
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1+cot^2x
csc^2x (Pythagorean)
8
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1+tan^2x
sec^2x (Pythagorean)
9
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sin(-x)
-sinx (even/odd)
10
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csc(-x)
-cscx (even/odd)
11
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tan(-x)
-tanx (even/odd)
12
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cot(-x)
-cotx (even/odd)
13
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cos(-x)
cosx (even/odd)
14
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sec(-x)
secx (even/odd)
15
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cos(pi/2-x)
sinx (cofunction)
16
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sin(pi/2-x)
cosx (cofunction)
17
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csc(pi/2-x)
secx (cofunction)
18
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sec(pi/2-x)
cscx (cofunction)
19
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cot(pi/2-x)
tanx (cofunction)
20
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tan(pi/2-x)
cotx (cofunction)
Note 
Flashcards (30)