解题方法
1 . 已知函数
,函数
.
(1)求函数
的最小值;
(2)若
,不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87010355e41a4358be5261241a54132f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4d7aa9ef1e1c8423ed99cdfcf54332.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eacf074028e06e3e301c5749c178402e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9407ee0de028ea9d643279c15e52da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
2 . 已知函数
(
且
)在区间
上的最大值是2.
(1)求
的值;
(2)若函数
的定义域为
,求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a04546d92fd165fc1ad2cc82c2dbb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eaa35d0c692ed1b0c230708791c3464.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b9849f08542380b7c32621ebea35ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92094bee1802572d3c9122d6a6cdc972.png)
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解题方法
3 . 已知函数
是定义在
上的奇函数,且图象过点
和
,当
时,
.
(1)求
的值;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/148e867780cd82b544b64b35cc1f6fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c99ec5ea1d9029c8ace91b2da7e860.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77f4a705abb0acb8d315922c1797f6da.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b4218f00da487d3f63b9360144708f.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2484f4dc493a45dae01bb8d385ee14e5.png)
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4 . (1)已知函数
,
,求函数
的值域;
(2)解关于x的不等式:
(
且
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eaeb2ab68a49074d623ffca072fed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e9cc87ac1bf9ce0c9160a95d249d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解关于x的不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1ff2f524f2cb4cd6b8578308a98d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
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解题方法
5 . 已知函数
.
(1)讨论
的单调性;
(2)若函数
在区间[a,b](其中
)上的值域为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d260bd1152b8a240b371f484cc8553.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b0d566fe2781fcfdff355fb1ecc05e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746fac80736cd181a9fb2f9cdcf8065e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba80365bfc518351c0c66ab7e2f14e27.png)
(1)求
的定义域;
(2)若
,
,求
,
的值(结果用含a,b的代数式表示);
(3)若函数
求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba80365bfc518351c0c66ab7e2f14e27.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0641068fdf9de4d868de9f9defd4df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4686efb271cd025e282547c4b2a6edd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930f7706c8f0a021d2e81f1cba24cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e215cb47345887b6320c4914b9682e06.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893a3c0f289c766c42051f4961e000d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c31d3c42dffec798d9eae6b1239950b.png)
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解题方法
7 . 已知函数
,其中
且
.
(1)求
的值和函数
的定义域;
(2)判断并证明函数
的奇偶性;
(3)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724303bbd301ccc51c390ad51712510f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4266704cf6a09ed98228ee26d91f402c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断并证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
您最近一年使用:0次
名校
8 . 已知
,
.
(1)若
,求
的取值范围;
(2)若函数
恰有两个零点,求实数a的取值范围;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b39c5d66018f0736a0457961c91e1c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a1141aa62d95fc3b75e3d6833aaaf0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a3f237b03aaa5f0fb96e572706349c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/732a3c49d8680218bdcc2f39f2b4f601.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08180ea9d4238fd449255a0b47f3bb2f.png)
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解题方法
9 . 已知函数
(
,且
)在区间
上的最大值是1.
(1)求
的值;
(2)若函数
的定义域为
,求使得不等式
成立的实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e349f49908801a73999320f7a49820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1e12efc515a2a7cf8e7e438c60303a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122203aca07b447a33487c8203b85853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6923a9370bc34639368cf357b947a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 已知函数
.
(1)讨论函数
的单调性;
(2)若函数
与函数
的图象存在两个不同的交点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1effff9dca3af28598e46d3f173ed3.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32766849391ab38dda9c6a21cf3fa6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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