计算
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5247859e1d7c9d037ca8ec00257293b.png)
(2)解不等式组
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5247859e1d7c9d037ca8ec00257293b.png)
(2)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b25b133d686afdda116d310f6547d28.png)
更新时间:2024-03-13 17:30:13
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【推荐2】已知关于
的一元二次方程
(
为实数),
(1)若方程有两个不相等的实数根,求
的取值范围;
(2)若
为整数,且该方程有一个根是负整数,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cf8cafd87327411f735502cec72307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若方程有两个不相等的实数根,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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