ap calc trig identities 😔
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Last updated 11:42 PM on 5/11/25
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9 Terms
1
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cos(2x)
cos²x-sin²x = 1-2sin²x = 2cos²x - 1
2
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sin(2x)
2sinxcosx
3
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tan(2x)
(2tanx)/(1-tan²x)
4
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sin(x/2)
√((1-cosx)/2)
5
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cos(x/2)
√((1+cosx)/2)
6
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tan(x/2)
√((1-cosx)/(1+cosx))
7
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sin²x
(1-cos(2x))/2
8
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cos²x
(1+cos(2x))/2
9
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tan²x
((1-cos(2x))/(1+cos(2x))
Note 
Flashcards (25)