计算：2a÷a/b·b/2a
问题描述：
计算：2a÷a/b·b/2a
答
2a÷a/b·b/2a
=2a*b/a·b/2a
=2b*b/2a
=b²/a
答
.....b^2/a
答
2a÷a/b·b/2a
=2b*b/2a
=b²/a
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