Power-Reducing Identities Flashcards by Diego Gryth

Q

What is sin²(θ)?

A

(1 - cos(2θ)) / 2

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Q

What is cos²(θ)?

A

(1 + cos(2θ)) / 2

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Q

What is tan²(θ)?

A

(1 - cos(2θ)) / (1 + cos(2θ))

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