Question

Найдите производную функции:
3-$frac{1}{3}$ * cosx

Answer 1

$frac{d}{dx}(3-frac{1}{3}cos (x))=\\=frac{d}{dx}(3)-frac{d}{dx}(frac{1}{3}cos (x))\\=0-frac{1}{3}frac{d}{dx}(cos (x))=\\=-(-frac{1}{3}(-sin (x)))=\\=frac{1}{3}sin (x)=frac{sin (x)}{3}$