Calculus AB Trigonometric Identities

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18 Terms

1
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sin²x+cos²

1

2
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tan²x+1

sec²x

3
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cot²x+1

csc²x

4
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sin(2x)

2sinxcosx

5
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cos(2x)

cos²x-sin²x

1-2sin²x

2cos²x-1

6
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tan(2x)

2tanx/1-tan²x

7
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sin(a+b)

sinacosb+cosasinb

8
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sin(a-b)

sinacosb+cosasinb

9
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cos(a+b)

cosacosb-sinasinb

10
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cos(a-b)

cosacosb+sinasinb

11
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tan(a+b)

tana+tanb/1-tanatanb

12
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tan(a-b)

tana-tanb/1+tanatanb

13
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d/dx(sinx)

cosx

14
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d/dx(cosx)

-sinx

15
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d/dx(tanx)

sec²x

16
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d/dx(cot)

-csc²x

17
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d/dx(secx)

secxtanx

18
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d/dx(cscx)

-cscxcotx