10.(2008年四川省南充市).
解:.
·················································································································· 4分
. 6分
9.(2008四川内江)计算:
8.(2008 四川 广安)计算:.
解:原式=-9+8-+1+
=
7.(08浙江温州)计算:
解:
6.(2008北京)计算:.
解:
5.(2008年浙江省嘉兴市)计算:.
解:原式
4.(2008年江苏省无锡市)计算:.
解:原式····································· (4分)
3. (2008年吉林省长春市)计算
解:原式=
==2
.1.(2008年大庆市)计算:.
解:=
2.(2008年吉林省长春市)计算:
答案:2+2
17. (2008黑龙江)函数中,自变量的取值范围是 .
答案:且
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