设k为实数,若函数
在区间
上有零点,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0b79083507661cbc36b1eea15512bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38ba299945a68ef2ff2eecb0b7f4744.png)
20-21高一·江苏·课后作业 查看更多[2]
更新时间:2021-10-30 23:28:03
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【知识点】 根据零点所在的区间求参数范围
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解答题-问答题
|
较易
(0.85)
【推荐1】已知函数
.
(1)求实数
,
,使不等式
的解集是
;
(2)若
为整数,
,且函数
在
上恰有一个零点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282a54e8a2e03b98c0f4124b3a654a9f.png)
(1)求实数
![](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/babb40648b05cf3dfc5899e5c92a378e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9a845e51ba5c12ec99975423deb347.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6c96b9335c10b51be2968e9e55d3cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f79c81cbad87b98161cdc6c6e6ac468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12a2b775323aa479314a2acc536f4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知二次函数
在区
内存在零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcdab80efb2bdf94f959ffeae78f9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次