1) 2*根号下2/3

问题描述:

1) 2*根号下2/3
2) 3*根好下3/8
3) 3*根号下2/3

1) 2*根号下2/3 =根号下8/3;
2) 3*根好下3/8 =根号下27/8;
3) 3*根号下2/3 =根号下18/3=根号下6.