Question

Найдите производную функции:
$y = x^{7} + 2 x^{5} + \frac{4}{x}$

Answer 1

$y = x^{7} + 2 x^{5} + \frac{4}{x} \\ \\ y'=7x^6+10x^4- \frac{4}{x^2}$

Answer 2

$y = x^{7} + 2 x^{5} + \frac{4}{x} \\y'=(x^{7} )'+ (2 x^{5})' + (\frac{4}{x} )'=7x^6+2*5x^4+4* (\frac{1}{x} )'=7x^6+10x^4- \frac{4}{x^2}$