Cos(2x) Flashcards by Абвг Ежз | Brainscape

Q

Cos(2x)

A

Cos(2x)=Cos^2(x)-Sin^2(x)

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Q

Cos(2x)

A

Cos(2x)=2Cos^2-1

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Q

Cos(2x)

A

Cos(2x)=1-2Sin^2(x)

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