Question

若y=4根号下2x-1+3根号下1-2x+1,求2xy分之根号下2x-根号下y的值

Answer 1

y=4√（2x-1）+3√（1-2x）+1

2x-1≥0

1-2x≥0

可得1/2≤x≤1/2

即x=1/2

代入得y=1

2xy分之根号下2x-根号下y

=(√2x-√y)/2xy

=(1-1)/2xy

=0