1-根号27+ 1-根号2的绝对值 +1/(根号3+根号2)

问题描述:

1-根号27+ 1-根号2的绝对值 +1/(根号3+根号2)

=(1-3)+(根号2-1)+(根号3-根号2)/((根号3+根号2)*(根号3-根号2))
=-2+(根号2-1)+(根号3-根号2)/(3-2)
=根号3-3