√ab-√a/b-√b/a+√b/a+a/b+2 (a>0 b>0)[根号下ab-根号下b分之a-根号下a分之b+根号下(a分之b+b分之a+2)]化简

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√ab-√a/b-√b/a+√b/a+a/b+2(a>0b>0)[根号下ab-根号下b分之a-根号下a分之b+根号下(a分之b+b分之a+2)]化简√ab-√a/b-√b/a+√b/a+a/b+2(a

√ab-√a/b-√b/a+√b/a+a/b+2 (a>0 b>0)[根号下ab-根号下b分之a-根号下a分之b+根号下(a分之b+b分之a+2)]化简
√ab-√a/b-√b/a+√b/a+a/b+2 (a>0 b>0)
[根号下ab-根号下b分之a-根号下a分之b+根号下(a分之b+b分之a+2)]
化简

√ab-√a/b-√b/a+√b/a+a/b+2 (a>0 b>0)[根号下ab-根号下b分之a-根号下a分之b+根号下(a分之b+b分之a+2)]化简
全部乘以根号ab
=ab-a-b+a+b
=ab
ab再除以根号ab(因为上面乘了根号ab,所以要除一次.)
=根号ab