Latihan Matematika Peminatan Kelas XI Persamaan Trigonometri
# 10
Pilgan

Jika sin⁡2(x−π6)=12\sin^2\left(x-\frac{\pi}{6}\right)=\frac{1}{2} untuk 0≤x≤2π0\le x\le2\pi maka nilai xx yang memenuhi adalah ....

A

{5π12,11π12,17π12,23π12}\left\{\frac{5\pi}{12},\frac{11\pi}{12},\frac{17\pi}{12},\frac{23\pi}{12}\right\}

B

{5π13,9π13,17π13,21π13}\left\{\frac{5\pi}{13},\frac{9\pi}{13},\frac{17\pi}{13},\frac{21\pi}{13}\right\}

C

{3π7,4π7,9π7,23π7}\left\{\frac{3\pi}{7},\frac{4\pi}{7},\frac{9\pi}{7},\frac{23\pi}{7}\right\}

D

{5π12,11π12,17π12}\left\{\frac{5\pi}{12},\frac{11\pi}{12},\frac{17\pi}{12}\right\}

E

{3π7,9π7,23π7}\left\{\frac{3\pi}{7},\frac{9\pi}{7},\frac{23\pi}{7}\right\}

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