Question

8 sin x/3*cos x/3-2 корня из 2

Answer 1

$8sin \frac{x}{3} cos \frac{x}{3} - 2 \sqrt{2} =4sin \frac{2x}{3} - 2 \sqrt{2}$

Answer 2

$8sin \frac{x}{3} *cos \frac{x}{3} -2 \sqrt{2} =4*2sin \frac{x}{3} cos \frac{x}{3} -2 \sqrt{2} =4*sin \frac{2x}{3} -2 \sqrt{2} =\\\\=4sin \frac{2x}{3} -2 \sqrt{2}$