Question

(2-3x)分之一的导数

Answer 1

y=1/(2-3x)=(2-3x)^(-1)
则，y'=(-1)·[(2-3x)^(-2)]·(2-3x)'
=(-1)·[(2-3x)^(-2)]·(-3)
=3·[(2-3x)^(-2)]
=3/(2-3x)²