Найдите производную y=(0,5-x)cosx+sinx

Question

Найдите производную
y=(0,5-x)cosx+sinx

Answer 1

Y=0,5cosx-x*cosx+sinx
y'= -0,5sinx-(x'*cos+x*(cosx)')+cosx= -0,5sinx-cosx+xsinx+cosx= -0,5sinx+xsinx= sinx(x-0,5)

Answer 2

Y =0.5sinx
f1(x) =0.5(sinx1)=0.5_cosx