已知函数
是偶函数.
(1)求a的值;
(2)设
,
,若
,存在
,使得
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a92f6d7bcca940cd2c62af3cf31957.png)
(1)求a的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7970ee21c48cd998470c7d488199c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a2465934136ed4b8f64525875cf4d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfd808e2b9846b09bbe9e67bfd82fc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9670606ab5bc0602301a2cc25151e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174426520dc1b3bbc366bca4deaa664.png)
更新时间:2024-01-13 06:49:36
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解答题-作图题
|
适中
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解题方法
【推荐1】已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/07648155-dbcf-4af1-9b56-bace775435f1.png?resizew=224)
(1)请在如图所示的直角坐标系中作出a=1时f(x)的图象,并写出此时该函数的单调区间;
(2)设函数f(x)在区间[1,2]上的最小值为h(a).
①求h(a)的表达式;
②若关于a的不等式h(a)≤t对任意的a∈
恒成立,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebe7b99e8f19b94eb626dd9e9cb1783.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/07648155-dbcf-4af1-9b56-bace775435f1.png?resizew=224)
(1)请在如图所示的直角坐标系中作出a=1时f(x)的图象,并写出此时该函数的单调区间;
(2)设函数f(x)在区间[1,2]上的最小值为h(a).
①求h(a)的表达式;
②若关于a的不等式h(a)≤t对任意的a∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58da971d5e7e9bdb64ff61076132b4db.png)
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解答题-证明题
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解题方法
【推荐2】已知
,
,
.
(1)求
的取值范围;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66a894fe1c8dddb41d9e4885e979a5c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
(2)求证:
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
(
且
)是定义在
上的奇函数.
(1)求实数
的值;
(2)证明函数
在
上是增函数;
(3)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdeb8c65828c40975b7860546a3e5d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce2594833690eedb3328fe747feb3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d4716b7bf4e79343dc5dd9ee4672fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】设
为奇函数,
为常数.
(1)求证:
是
上的增函数;
(2)若对于区间
上的每一个
值,不等式
恒成立,求实数
取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8eb8ea05de616e19a06bb0e94f85261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
(2)若对于区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f88173ef0c29bedd0155b7893d2474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c7061aa486ece79a3432c2c6de9095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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适中
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【推荐1】已知函数
对一切实数
,
都有
成立,且
.
(1)求
的解析式;
(2)若
,
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70dfd3b70aab0849a459a241d904aa73.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3010c07acbe166b98fc886cc846de51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b525a7c1579dda02c1962d23efbf1b17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7dacad941a20100e759936624ad032.png)
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【推荐2】已知集合
,函数
的定义域为
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(1)若
,求实数
的取值范围;
(2)若方程
在
内有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b89c3a27aa862cc756bb92148687b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba9e533f6dd1a1cae44e5cd564c0308.png)
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede280b7d4529ca9afb08bff174225ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033f2c2bee683bec51fd69e2640ca5a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
【推荐3】已知函数
.
(1)证明:函数
在
上单调递增;
(2)若对任意
,都存在
,使
成立,求实数b的取值范围;
(3)设
,问是否存在实数m,使函数
在
上的最大值为1?若存在,求出m的值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea366268bda7a58cace1afb754b18788.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a69bba3f36fe0f0e28725a7af1f239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63ad079cc107a1c3c803d1467e9baf7.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a72e4394fd969630592ec7cf551c2d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
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