Trig Identities Flashcards by Noah Patel

Q

Sin²x + cos²X = ?

A

1

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Q

Tanx = ?/?

A

Sinx / Cosx

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Q

Cotx = ?/?

A

1/tanx = cosx/sinx

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Q

Secx = ?/?

A

1/cosx

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Q

Tan²X + 1 = ?

A

Sec²x

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Q

Sec²x - 1 = ?

A

Tan²x

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Q

Cos2x = ?

A

Cos²x - sin²x

2cos²x - 1

1 - 2sin²x

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Q

CosecX = ?/?

A

1/sinX

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Q

Sin2X = ?

A

2SinXCosX

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Q

Cosec²X = ?

A

1 + cot²X

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Q

Cot²x = ?

A

Cosec²X - 1

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