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(200/a)/[(200/a-2)] 化简
人气:426 ℃ 时间:2020-05-03 22:17:41
解答
(200/a)/(200/a-2)
=(200/a-2+2)/(200/a-2)
=[(200/a-2)+2]/(200/a-2)
=1+2/(200/a-2)
=1+1/(200/a-2)
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