已知函数f(x)在[0,正无穷]上满足(X1-X2)[F(X1)-F(X2)]大于0,且f(2x-1)小于f(3x),则x的取值范围是__

问题描述:

已知函数f(x)在[0,正无穷]上满足(X1-X2)[F(X1)-F(X2)]大于0,且f(2x-1)小于f(3x),则x的取值范围是__

(X1-X2)[F(X1)-F(X2)]大于0 =>f为增
00