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

Question

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

sin²(3x) cos²(3x)

Answer 1

sin² (3x) = (1 - cos 6x) / 2

cos² (3x) = (1 + cos (6x) / 2