trig identities :)))) Flashcards by Leo Bealby | Brainscape

Q

secx

A

1/cosx

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Q

cosecx

A

1/sinx

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Q

cotx

A

1/tanx

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Q

sec²x

A

tan²x + 1

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Q

cosec²x

A

cot²x +1

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Q

cosx/sinx

A

cotx

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Q

sin2x

A

2sinx cosx

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Q

tan2x

A

2tanx/1-tan²x

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Q

cos2x

A

cos²x - sin²x

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Q

sin²x + cos²x

A

1

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Q

tanx

A

sinx/cosx

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Q

cos2x (sin version)

A

1 - 2sin²x

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Q

cos2x (cos version)

A

2cos²x - 1

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