2 sin ( phi/3 - x) = a. √3 cos 2x - √3 sin x b. cos x - √3 sin x c. √3 cos x - sin x d. √3 cos x + sin x e. cos x + √3 sin x

[tex]2 \sin( \frac{\pi}{3} - x ) \\ = 2( \sin( \frac{\pi}{3} ) \cos(x) - \cos( \frac{\pi}{3} ) \sin(x)) \\ = 2( \frac{1}{2} \sqrt{3} \cos(x) - \frac{1}{2} \sin(x) ) \\ = \sqrt{3} \cos(x) - \sin(x) [/tex]
pilih C