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> (2011四川内江,6分)已知,则.-八年级数学
(2011四川内江,6分)已知,则.-八年级数学
题目简介
(2011四川内江,6分)已知,则.-八年级数学
题目详情
(2011四川内江, 6分)已知
,则
.
题型:填空题
难度:偏易
来源:不详
答案
-2
此题考查绝对值与根式
由
可知,
,
,
答案 -2
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(2011山东济宁,5,3分)若,则的值为()A.1
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(2011山东滨州,2,3分)若二次根式有
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题目简介
(2011四川内江,6分)已知,则.-八年级数学
题目详情
答案
由
答案 -2