1. (本题共16分,每小题8分.)1.(1)(本题满分8分)计算:(-3.14)0

1. (本题共16分,每小题8分.)

1.(1)(本题满分8分)计算:(-3.14)0×(-1)2010+(-)-2-│-2│+2cos30°

2.(2) (本题满分8分)先化简: ,再从不等式组的解集中取一个合适的整数值代入,求出原式的值.

 

答案

 

1.(1)解:原式

2.

(2)解:

 

,得:

∴当时,原式

(注意:此题在取值时,只能取,不能取,0,,因为分母不能为0)

 

解析:略

 

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