trig identities
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6 Terms
1
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sin 2A
2sin A cos A
2
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sin 2A (for tan)
2tan A / (1 + tan2A)
3
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cos 2A (for sin)
1 - 2sin2A
4
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cos 2A (for cos)
2cos2A + 1
5
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cos 2A (both)
cos2A - sin2A
6
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tan 2A
2tan A / (1 - tan2A)
Note 
Flashcards (100)