Question

Спростити вираз: sin(30°+x) - cos(60°+x)​

Answer 1

Ответ:

sin30*cosx+cos30*sinx-cos60*cosx+sin60*sinx=1/2 * cosx+$\sqrt{3}$/2sinx-1/2cosx+$\sqrt{3}$/2sinx=$\sqrt{3}$sinx