计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e07dfa478cbc3df41edd2a6305f27b.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b87fec13a8a894045c5fc0eb0f31928.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5aff67c96f4a0fea061783408de1adf.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e07dfa478cbc3df41edd2a6305f27b.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b87fec13a8a894045c5fc0eb0f31928.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5aff67c96f4a0fea061783408de1adf.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8605b049fc3dd48d6111e0a8d0bbdc06.png)
更新时间:2024-02-24 14:49:07
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解答题-计算题
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【推荐2】对于含绝对值的算式,在有些情况下,可以不需要计算出结果也能将绝对值符号去掉,例如:
;
;
;
.
观察上述式子的特征,解答下列问题:
(1)把下列各式写成去掉绝对值符号的形式(不用写出计算结果):
①
=______;
②
=______;
(2)当
时
______;当
时,
______;
(3)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53b47a8a4d58a8f77bc8efa8c8a8a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5859dcea066202edc1b484fe2311ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2fb6fa018129d75593024e83cdc3a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8c80974915612a5d002d315f9fa5af1.png)
观察上述式子的特征,解答下列问题:
(1)把下列各式写成去掉绝对值符号的形式(不用写出计算结果):
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4803f4eae79d0e8749901da7788bcf.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788b608dfdd5d24b1b275a183dae4833.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/882de478f127805c6de80f649feabc49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc11b7e4d40794e8a2acc4ed959b3b1b.png)
(3)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f424b17e2315710432d71a188c6ce1.png)
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