1 . 已知函数
,其中
,若
在区间(
,
)上恰有2个零点,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91249eacf5c03b1def1ce806b56d8887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
解题方法
2 . 已知函数
,将函数
的图象向左平移
个单位,得到函数
的图象.
(1)求
的值;
(2)求函数
的解析式;
(3)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4c72457795d0c46abd4ca6cc5b793f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dab233c28f42056ad6058d4a2c96fff.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e5a9895c1a7fd4978bddde2a5e1806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e798648fbcfe19b35d62bb50aeb5da.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
,
,
.
(1)求函数
的最小值及此时
的值;
(2)若对
,
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4aebf14c84bc2ed894e952792e81d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad434d7a8c06b9d2584cb972c423944.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3010c07acbe166b98fc886cc846de51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e2a6e2191a992b9efa34bc7da5cce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4624a648f30189a10c8b6683b190ce5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次