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> 化简:。-八年级数学
化简:。-八年级数学
题目简介
化简:。-八年级数学
题目详情
化简:
。
题型:计算题
难度:中档
来源:湖南省期末题
答案
解:原式=
=0。
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题目简介
化简:。-八年级数学
题目详情
答案