1 . 画出下列函数的图象,并分别确定使
的实数x的取值范围:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f19f38dde02c79ced528a94826b4072.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d71edb9d332f150215443b79e40831.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688211ed30ce54c12efcfd8df0cf7706.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c075299c92df872b42f62746f2e77d9b.png)
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2023-10-07更新
|
89次组卷
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3卷引用:北师大版(2019)必修第一册课本习题第一章4.2 一元二次不等式及其解法
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2 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897032896274432/2945830704455680/STEM/543c5762add34f10ada4548e24ba8109.png?resizew=226)
(1)画出函数
的图像并写出它的值域;
(2)若
,求x的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061284b68e4e5b0154ce4bb7fd3602fb.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897032896274432/2945830704455680/STEM/543c5762add34f10ada4548e24ba8109.png?resizew=226)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f300317aa56697cf09a033235900de.png)
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3 . 求函数
的零点,并画出函数的图象.解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c8f31ac48733eada5e603d8b040e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54236146c512788e40eaafb5d17d29bf.png)
您最近一年使用:0次