Question

найдите производную
f(x)=8/x+x/2

Answer 1

$f(x)= \frac{8}{x}+ \frac{x}{2} \\ f'(x)=( \frac{8}{x}+ \frac{x}{2})'=8*(- \frac{1}{x^2})+ \frac{1}{2}*1=- \frac{8}{x^2}+ \frac{1}{2}$