根号下(11分之7)的平方-(11分之3)的平方
=根号下[(7/11+3/11)*(7/11-3/11)]
=根号下[10/11*4/11]
=2/11*根号10
(根号三-2)的o次方+根号三分之(根号三加根号六)+根号二加一分之(根号2)
=1+(1+根号2)+根号2(根号2-1)
=1+1+根号2+2-根号2
=4
根号下(11分之7)的平方-(11分之3)的平方
=根号下[(7/11+3/11)*(7/11-3/11)]
=根号下[10/11*4/11]
=2/11*根号10
(根号三-2)的o次方+根号三分之(根号三加根号六)+根号二加一分之(根号2)
=1+(1+根号2)+根号2(根号2-1)
=1+1+根号2+2-根号2
=4