$2\cos x - \cos 3x - \cos 5x = $
$2\cos x - \cos 3x - \cos 5x = $
- A
$16{\cos ^3}x{\sin ^2}x$
- B
$16{\sin ^3}x{\cos ^2}x$
- C
$4{\cos ^3}x{\sin ^2}x$
- D
$4{\sin ^3}x{\cos ^2}x$
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