计算:
(1)
.
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9403cdcbb1298f273b7f3dbee2f34a82.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4e176d9648f27341c8fb590ba5c8bc.png)
22-23八年级下·江苏盐城·期中 查看更多[2]
更新时间:2024-05-02 11:46:50
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解答题-计算题
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【推荐2】计算:
(1)|﹣3|﹣
+1;
(2)﹣23﹣|1﹣
|﹣
×
.
(1)|﹣3|﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5be7821872c2f83d39ffaea5216d09.png)
(2)﹣23﹣|1﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc9a84f16a94b0ca5db78cba26b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7634acb3a275e7bf077ff7b5f7d55f6f.png)
您最近一年使用:0次
解答题-计算题
|
较易
(0.85)
【推荐2】在进行二次根式的化简时,我们有时会遇到形如
的式子,对于这类式子我们可以进一步将其化简,使其分母转化为有理数,这一过程叫做分母有理化.
例如:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d2ff89936c3a9a7e45a3f29964ae6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edbcddc6cb512d25c08823dc5da47792.png)
(1)用上述方法化简
;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2748637b193c9cb36e8f61b42e27272e.png)
例如:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d2ff89936c3a9a7e45a3f29964ae6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edbcddc6cb512d25c08823dc5da47792.png)
(1)用上述方法化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15230226b5298ca83c6e164772c21003.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de63fc2a033bf154a52aecfadb3e8b4.png)
您最近一年使用:0次