已知
与
互为相反数,则求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56d6a3f877ef7c4acfd314445f6bf79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a5eee509274c37d10112f07d16a764f.png)
更新时间:2024-04-20 11:56:19
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解答题-问答题
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【推荐1】已知
的平方根是
的立方根是3,
的相反数是
.
(1)分别求出
的值;
(2)求
的平方根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02605f59cfd2b0cf6e9d292888d70ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10425ce718de36a38957614634b48a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(1)分别求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
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【推荐2】若
,
互为相反数,
,
互为倒数,
的绝对值为2.
(1)直接写出
,
,
.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f56c7629163c5fe76b2c5990d7ac1f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413588a38e2a2614f45594e46f2d65b1.png)
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解答题-计算题
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【推荐2】(1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71686c6bae252f23909b73ebe309bb0.png)
(2)解方程组:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202da4fc2a4dcd78dc6189b38aa997c1.png)
(3)解不等式组
并在数轴上表示不等式组的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71686c6bae252f23909b73ebe309bb0.png)
(2)解方程组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202da4fc2a4dcd78dc6189b38aa997c1.png)
(3)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0b52a737d50bfdf1e869775bae37cd.png)
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【推荐1】已知函数y=2x-6.(1)当x=2时,求y的值;(2)当y=
时,求8x-12的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
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