已知函数
.
(1)判断
的奇偶性;
(2)证明:函数
存在2个不同的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4216c3b0840bcb7c7a846bfb21e25e3e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4216c3b0840bcb7c7a846bfb21e25e3e.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedfddd4e5616ee4c064f5b4a9a1d98d.png)
更新时间:2020-03-20 11:06:06
|
相似题推荐
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知函数
,
,设
.
(1)求
的值;
(2)是否存在这样的负实数
,使
对一切
恒成立,若存在,试求出
的取值集合;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637fc7f0738a0a3c872656bfe0612e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76952b0d4e0a23625a1068cd724a64fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7863b54185da5a3f1a765e1aa0577e76.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a58477922e5bddf27245da22ef3c682.png)
(2)是否存在这样的负实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65475f57373a8fccca9b7c2432e0da03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388d3d213a231cccf854a29eef611d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解答题-作图题
|
较难
(0.4)
【推荐2】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defe8603ada1c2de987abfac40501a48.png)
(1)判断函数
的奇偶性
(2)作函数
的简图(在答题卡上作图,不需要写作图过程)并写出函数的单调递增区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defe8603ada1c2de987abfac40501a48.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)作函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】已知函数
,直线
是曲线
在
处的切线.
(1)求证:无论实数
取何值,直线
恒过定点,并求出该定点的坐标;
(2)若直线
经过点
,试判断函数
的零点个数并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6345a00cf5c4dea07bf00c4ccc560be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(1)求证:无论实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/110d3e40e0fbb017ec72c3d9923ae624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
.
(1)当
时,判断
的零点个数;
(2)若不等式
对任意
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7980111edee3c8fc65222950c4691e7b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba55e007b00aa922f39f8f8a79a03a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c6c971f35885820272fb633565aca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
您最近一年使用:0次