Trig Identities for AP Calc BC Exam
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9 Terms
1
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sin(2x)
=2sin(x)cos(x)
2
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cos(2x)
=cos^2(x)-sin^2(x)
=1-2sin^2(x)
3
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cos^2(x)
=1/2(1+cos(2x))
4
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sin^2(x)
=1/2(1-cos(2x))
5
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sin^2(x)+cos^2(x)
=1
6
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1+tan^2(x)
=sec^2(x)
7
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cot^2(x)+1
=csc^2(x)
8
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sin(-x)
=-sin(x)
9
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cos(-x)
=cos(x)
Note 
Flashcards (61)