涵数f(x)=根号下2x方－3x+1的单调第减区间是
问题描述：
涵数f(x)=根号下2x方－3x+1的单调第减区间是
答
(1/2,1)
答
f(x)=根号下2x方－3x+1=根号下[2*(x^2-3x/2+9/16-9/16)+1]
=根号下[2*(x-3/4)^2-1/8]
要单调递减：x=0
解得：x