Rewrite with only sin x and cos x.
-$\sin 2 x - \cos x$
A) $2 \sin x \cos ^ { 2 } x$
B) $\cos x ( 2 \sin x - 1 )$
C) $2 \sin x$
D) $\sin x$

Name: Rewrite with only sin x and cos x. -$\sin 2 x - \cos x$ A) $2 \sin x \cos ^ { 2 } x$ B) $\cos x ( 2 \sin x - 1 )$ C) $2 \sin x$ D) $\sin x$
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Question

Quizplus · Accepted Answer

Using the double angle formula, $\sin 2x = 2 \sin x \cos x$, the expression can be rewritten as $2 \sin x \cos x - \cos x$, which simplifies to $\cos x (2 \sin x - 1)$.

Rewrite with Only Sin X and Cos X sin⁡2x−cos⁡x\sin 2 x - \cos xsin2x−cosx

Rewrite with Only Sin X and Cos X $\sin 2 x - \cos x$