Question: Two trigonometric identities are given by: (a) sin 5x = 5sinx- 20sin3x+ 16sin5x (b) sin2xcos2x = 1 - cos4x/8 For each part, verify that the

Two trigonometric identities are given by:
(a) sin 5x = 5sinx- 20sin3x+ 16sin5x
(b) sin2xcos2x = 1 - cos4x/8
For each part, verify that the identity is correct by calculating the values of the left and right sides of the equation, substituting x = π/12.

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