Question

найти производную 1) у=(2х^5-7)/х8 2)у=-5cos x(x^4+7)

Answer 1

1)(2x^5-7)'*x^8-(2x^5-7)*(x^8)'/x10=10x^4-16x^12-56x^7/x^10=62x^5/x^10=62x^2