Question

Помогите пожалуйста

Answer 1

Ответ:   B) .

$f(x)=\Big(\dfrac{x}{5}-1\Big)^5\ \ ,\ \ \ \ \ \ \boxed{\ (u^5)'=5u^4\cdot u'\ }\\\\\\f'(x)=5\cdot \Big(\dfrac{x}{5}-1\Big)^4\cdot \Big(\dfrac{x}{5}-1\Big)'=5\cdot \Big(\dfrac{x}{5}-1\Big)^4\cdot \dfrac{1}{5}=\Big(\dfrac{x}{5}-1\Big)^4$