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解题方法
1 . 已知命题
存在实数
,
成立
(1)若命题
为真命题,求实数
的取值范围;
(2)命题
函数
在区间
内单调递增,如果
是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a349161b52f9493112280309454cd9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76383340d9b447c5b53fcf1ab1bbe9d3.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b38bbb216ba81ed70695d951a26b34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa758260af9f57780cf6f061d310fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知函数
的最大值与最小值之和为a2+a+1(a>1).
(1)求a的值;
(2)判断函数
在[1,2]的零点的个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81a2eb33c12ebca4611dd230f5ce47.png)
(1)求a的值;
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61f235c3a4f5c62f85b5eaccdd38d0e.png)
您最近一年使用:0次
2020-08-24更新
|
144次组卷
|
5卷引用:【全国百强校】湖北省沙市中学2017-2018学年高一上学期期末考试数学试题
【全国百强校】湖北省沙市中学2017-2018学年高一上学期期末考试数学试题第四章 指数函数与对数函数 4.5 函数的应用(二) 4.5.1 函数的零点与方程的解(已下线)【新教材精创】4.3指数函数与对数函数的关系练习(2)-人教B版高中数学必修第二册(已下线)【课时作业】4.5函数的应用(二)(4.5.1 函数的零点与方程的解)-2021-2022学年高一数学《新教材同步精典导学案》(人教A版2019必修第一册)北师大版(2019) 必修第一册 章末检测卷(五)函数应用
3 . 已知
且
,
当
时,
恒成立,
在
上是增函数.
(1)若q为真命题,求m的取值范围;
(2)若p为真命题,求m的取值范围;
(3)若在“p且q”和“p或q”中有且仅有一个是真命题,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffd554e0d91dd05b89937685fea98e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd018453763d614361e77e83989d21c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e59703be42898c4aa7addcbd76a0bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f180fbe3df316493ac619e900571594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(1)若q为真命题,求m的取值范围;
(2)若p为真命题,求m的取值范围;
(3)若在“p且q”和“p或q”中有且仅有一个是真命题,求m的取值范围.
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2020高三·全国·专题练习
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4 . 设命题
:函数
在区间
内单调递减,
:曲线
与
轴有两个不同的交点.若
为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0d99a50bd6a715e6fb1373fe8e6758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0cdc868c5021c3a8b24bd872602daa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8d738a77af28e5e22ef50959a03632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e29e70dc0bc2a9cf1a5feb67d439566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 对于
.
(1)
的定义域为
和值域为
时
的取值范围一样吗?若不一样,请分别求出
的取值范围.
(2)实数
取何值时
在
上有意义?实数
取何值时
的定义域为
?
(3)实数
取何值时
的值域为
?
(4)实数
取何值时
在
上是增函数?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177a080e6ff4bc9438327b68561a56cc.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c3204dcb6b697db534514558111f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179d17cbec46f0abdd8b0ac2240c3760.png)
(3)实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7676a95d730f42cef3b0f4603a109e8a.png)
(4)实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7676a95d730f42cef3b0f4603a109e8a.png)
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6 . 已知函数
.
(Ⅰ)当
时,求函数
在
上的值域;
(Ⅱ)若函数
在
上单调递减,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede934743a1af3ea86e54aea43db0d79.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7fefece0cf6660a409832f72dff95.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a407e6a588828ff1a344da610c16301.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-04-06更新
|
852次组卷
|
7卷引用:2020届百校联盟高三TOP300七月尖子生联考数学(理)试卷
名校
7 . 已知命题
:关于
的方程
在
上有解;命题
:
在
上单调递增;如果命题
或
为真命题,
且
为假命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d144a4ca8ec356757e36400e08b6452a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b27737594745602c52d96af974cdad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7dcdd87d593df4a5c5e98d47fe1cfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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8 . 已知
.
(1)当
时,求
的单调区间;
(2)若
在
上为增函数,求实数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e6886c6721c96d929ebff90cc6c7c5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578fc38350175d35ded02fce9846c174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知函数
.
(1)若
在
上单调递减,求实数
的取值范围;
(2)当
时,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93ccaa3693a29f835f3f4a5800144779.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13e38a5ee18ecf4af2d9a8443b4a7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8b43bbfc08fb32faa35b917185431f3.png)
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10 . 已知
,
且
,若函数
在区间
上的最大值与最小值之差为1.
(1)求
的值;
(2)若
,求函数
的值域.
![](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/68a752eb1c3b6cecb539e2bd68decc58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74088e31acd9bc94dc8bc34e616bef64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb62f44c2ccedfb633ca8bff9afed4fb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00879cffccc124857ca755a8c345e45f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150ad146c854e4c7b5f0938284f36eb0.png)
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2020-02-24更新
|
360次组卷
|
2卷引用:安徽省合肥市肥东县第二中学2019-2020学年高一上学期期中数学试题