先化简,再求值[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]

来源：学生作业帮助网编辑：六六作业网时间：2024/05/17 02:49:55

先化简,再求值[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]先化简,再求值[a²

先化简,再求值[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]
先化简,再求值[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]

先化简,再求值[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]
[a²/a²-b²-a²b/a²-b²*(a/ab+b²-b/a²+ab)]
={a²(/a²-b²)-a²b/(a²-b²)*(a²-b²)/[ab(a+b)]}
={a²/(a²-b²)-a/[(a+b)]}
=[a²-a(a-b)]/[(a+b)(a-b)]
=b/[a+b)(a-b)]