![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99ea1314251ed4f6504e8d61174e1be6.png)
更新时间:2021-08-28 13:01:06
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解答题-计算题
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较易
(0.85)
【推荐1】实数a、b在数轴上的位置如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/3f1d0e53-7cdc-460c-8ccd-6ed665b9afdc.png?resizew=222)
(1)化简:
______ ;
______ .
(2)化简:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/3f1d0e53-7cdc-460c-8ccd-6ed665b9afdc.png?resizew=222)
(1)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a8d5d9aefdf3d9b3e0e17f79c22591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c0c4a1015260704e64d49f954ef167.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46311f9b0c8e99807c28f7c79e125a4d.png)
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