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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