Question

Найдите производную

Answer 1

$f(x)= \frac{11+3x^2}{x}= \frac{11}{x}+3x\\\\( \frac{c}{u})'= \frac{-c\cdot u'}{u^2}\; ,\; \; c=const \\\\y'=-\frac{11}{x^2} +3$