Trig Identities Flashcards by Caleb Hagner | Brainscape

Q

sin 2x

A

2 sin x cos x

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Q

cos 2x

A

1 - 2 sin^2 x

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Q

sin^2 x

A

(1 - cos 2x)/2

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Q

cos^2 x

A

(1 + cos 2x)/2

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Q

sin^2 x + cos^2 x

A

1

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