trig Flashcards by Leah Black

Q

cos2x =

A

cos^2 - sin^2

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Q

sin^2 + cos^2

A

1

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Q

cos^2

A

1/2 +cos2x/2

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Q

sin^2

A

1/2 - cos2x/2

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Q

tan^2 + 1

A

sec^2

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