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Rewrite the expression cos(6x ) in terms of cos (3x ) using the double-angle formula for cosine Rewrite the expression cos(6x) in terms of cos(3x)

Rewrite the expression cos(6x ) in terms of cos (3x ) using the double-angle formula for cosine

Rewrite the expression cos(6x) in terms of cos(3x) using the double-angle formula for cosine.

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