题目内容
(1)
.
(2)
+
.
(3)
.
(4)
.
(5)
(a>b>0).
(6)
.
(7)
+
(x>y).
(8)
.
答案:
解析:
解析:
|
(1)原式= = = (2)原式= = 4-= 4-(3)原式= = = = (4)原式= = = = (5)原式= (6)原式= = (m+n+2= 1;(7)原式= = (8)原式= = = = |
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