Question

Найти производную
f(x)=sin(2x-п/4)

Answer 1

$f_1(x)=sin(2x- frac{pi}{4} )\f(x)=sin(x)\f'(x)=cos(x)*x'= textgreater \= textgreater f_1'(x)=cos(2x-frac{pi}{4} )*(2x-frac{pi}{4} )'\f_1'(x)=2cos(2x-frac{pi}{4} )$