Trig functions Flashcards by Alex Chappell | Brainscape

Q

1 + tan²ϴ =

A

sec²ϴ

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Q

1 + cot²ϴ =

A

cosec²ϴ

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Q

Sin2ϴ

A

2sinϴcosϴ

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Q

Cos2ϴ (to cos and sin)

A

Cos²ϴ - Sin²ϴ

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Q

Cos2ϴ(to cos)

A

2Cos²ϴ - 1

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Q

Cos2ϴ(to sin)

A

1 - 2Sin²ϴ

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Q

Tan2ϴ

A

2Tanϴ / 1 - Tan²ϴ

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Q

secϴ

A

1/cosϴ

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Q

cosecϴ

A

1/sinϴ

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Q

cotϴ

A

1/tanϴ = cosϴ/sinϴ

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