Question

46 корень из 2 * cos(-п/4) * sin(-п/6) как решить ?

Answer 1

$46\sqrt{2}*cos(-\frac{\pi}{4})*sin(-\frac{\pi}{6})=46\sqrt2*cos\frac{\pi}{4}*(-sin\frac{\pi}{6})=$$46\sqrt2*\frac{\sqrt2}{2}*(-\frac{1}{2})=-\frac{46*2}{2*2}=-23$