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> (本题满分8分)先将化简,然后选取一个你喜欢的a的值,代入求值.-九年级数学
(本题满分8分)先将化简,然后选取一个你喜欢的a的值,代入求值.-九年级数学
题目简介
(本题满分8分)先将化简,然后选取一个你喜欢的a的值,代入求值.-九年级数学
题目详情
(本题满分8分)先将
化简,然后选取一个你喜欢的a的值,代入求值.
题型:解答题
难度:中档
来源:不详
答案
本题满分8分,其中化简5分,求值3分
解:原式=
=
……………………………………………………5分
在a>2的范围内取值,然后求得相应的值.……………8分
略
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题目简介
(本题满分8分)先将化简,然后选取一个你喜欢的a的值,代入求值.-九年级数学
题目详情
答案
解:原式=
=
在a>2的范围内取值,然后求得相应的值.……………8分