What is 2 sin 5x cos 3x
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2sin 5x cos 3x = sin (5x + 3x) + sin (5x -3x)
[Since 2 sin A cos B = sin (A + B) + sin (A - B)]
= sin 8x + sin 2x. 2
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Answer:
2 sin 5x cos 3x = sin (5x + 3x) + sin (5x -3x), [Since
2 sin A cos B = sin (A + B) + sin (A - B)] = sin 8x +
sin 2x. 2. Express sin (3∅)/2 ∙ cos (5∅)/2 as sum or difference.
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