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> 计算小题1:()+(-1)-小题2:先化简,再求值:-七年级数学
计算小题1:()+(-1)-小题2:先化简,再求值:-七年级数学
题目简介
计算小题1:()+(-1)-小题2:先化简,再求值:-七年级数学
题目详情
计算
小题1:(
)
+(
-1)
-
小题2:先化简,再求值:
题型:解答题
难度:偏易
来源:不详
答案
小题1:原式=
小题2:化简:原式=
(2分)
把
代入,原式=
(3分)
(1)考查幂和开方。(2)考查平方差公式。
上一篇 :
A1:;A2:;A3:;A4:=……An::(1)请观察A1,A2,A3
下一篇 :
My headache is killing me.I i
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题目简介
计算小题1:()+(-1)-小题2:先化简,再求值:-七年级数学
题目详情
小题1:(
小题2:先化简,再求值:
答案
小题1:原式=
小题2:化简:原式=
把