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> (8分))先化简、再求值:,其中a=-3.-八年级数学
(8分))先化简、再求值:,其中a=-3.-八年级数学
题目简介
(8分))先化简、再求值:,其中a=-3.-八年级数学
题目详情
(8分))先化简、再求值:
,其中
a
=
-3.
题型:单选题
难度:偏易
来源:不详
答案
见解析
=
当
a
=
-3,原式=
.
上一篇 :
下列计算正确的是A.B.C.D.-九年级
下一篇 :
By next summer John _____in
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题目简介
(8分))先化简、再求值:,其中a=-3.-八年级数学
题目详情
答案
当a=