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> 化简=______________.-九年级数学
化简=______________.-九年级数学
题目简介
化简=______________.-九年级数学
题目详情
化简
= ______________.
题型:填空题
难度:偏易
来源:不详
答案
先根据二次根式成立的条件得到a>1,再利用二次根式的除法得到
原式=
,然后根据二次根式的性质化简后约分即可.
解:∵a-1>0,
∴a>1,
∴原式=
=-
故答案为:-
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(1)⑵-八年级数学
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题目简介
化简=______________.-九年级数学
题目详情
答案
原式=
解:∵a-1>0,
∴a>1,
∴原式=
故答案为:-