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24 March, 01:05

Write sin (2x) cos (6x) as a sum of trigonometric functions.

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  1. 24 March, 01:27
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    Use the identity

    sin u cos v = 1/2 (sin (u + v) + sin (u - v))

    so its:-

    1/2 (sin (8x) + sin (-4x)) Answer
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