根号8-根号2分之4+(根号2+1)(根号2-1)
=2根号2-2根号2+2-1
=1
根号(-1)的平方+根号5分之根号10-根号三分之一*根号6+(π+1)的零次方
=1+根号2-1/3根号3*根号6+1
=1+根号2-根号2+1
=2