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14-09-2022
Mathematics

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Use double-angle identities to write each expression, using trigonometric functions of θ instead of 4 θ.
cos 4θ

Respuesta :

StephenJosephMathew StephenJosephMathew

14-09-2022

Answer:

cos4θ=8cos^4θ−8cos^2θ+1

Step-by-step explanation:

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