Question: Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles. tan 4 (2 x ) Use

Use the power-reducing formulas to rewrite the expression in terms of first powers of the cosines of multiple angles.

tan4(2x)

Use the product-to-sum formulas to rewrite the product as a sum or difference.

sin 5 sin 2

Use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle./12

7 cos(/12)

5 tan(/12)

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