名校
解题方法
1 . 已知函数
.
(1)解不等式
;
(2)记函数
的最小值为m,正实数a,b满足
,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e32fe6eea89758fe843a869976d08fd.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4509817be39bef4bcde115996ee39e8.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857ce2790f14cac8a0cfecc154015237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9048a4655708ea1ff6702b4b5061975a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb8d3035de644271d9c753e95fc9781.png)
您最近一年使用:0次
2020·全国·模拟预测
2 . (本小题满分10分)选修4-4:坐标系与参数方程
在平面直角坐标系
中,曲线C的参数方程为
(
为参数).在以坐标原点为极点,x轴的正半轴为极轴的极坐标系中,直线l的极坐标方程为
.
(1)求曲线C的普通方程及直线l的直角坐标方程;
(2)求曲线C上的点到直线l的距离的最大值与最小值.
(本小题满分10分)选修4-5:不等式选讲
已知
.
(1)求不等式
的解集;
(2)若
的最小值为M,且
,求证:
.
在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334e3a17bdb2273b59b4fa2e8c752ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc99e3533e86d24d47630cb4ee209695.png)
(1)求曲线C的普通方程及直线l的直角坐标方程;
(2)求曲线C上的点到直线l的距离的最大值与最小值.
(本小题满分10分)选修4-5:不等式选讲
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4fd6d69f12975d53bf7eebda2e17388.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013ffa2f0de8ab4176247c53bcd8ce7b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9975c406221e50c29970483385aeb3d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5af5a0bf00894d969fdc57e4119260f.png)
您最近一年使用:0次
解题方法
3 . 已知实数
,
满足:
.
(1)求证:
;
(2)若对任意的
,
,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254aebe3ef7eabdf41e46c1cd857c705.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7df04737303a839eb01c934bb2f0545.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b7ca6979653c1fabf321efee3e82eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b39a153e1252316968938b9ddc4b009c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
解题方法
4 .
.
(1)求
的最大值m的值;
(2)已知
,
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15a46d01f5d1d0ab2bd7308fd720d47.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知
![](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/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d65a03ddc26e2597681201911b17261.png)
您最近一年使用:0次
2020-05-14更新
|
120次组卷
|
2卷引用:2020届湖南省娄底市高三高考仿真模拟理科数学试题
5 . 若对于实数
,
有
,
.
(Ⅰ)求
的最大值
;
(Ⅱ)在(Ⅰ)的条件下,若正实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669adbbb51de05a3d4f27e245d004050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e1371b5ffd29041b1dc86bfd406d2c.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4769398000868a14fa322d0b1df97c6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(Ⅱ)在(Ⅰ)的条件下,若正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c568952f0da52aa9d0583377981a02f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255b5812e63fd28e1eba816f71417b5f.png)
您最近一年使用:0次
2020-05-13更新
|
405次组卷
|
5卷引用:天一大联考2019-2020学年高三毕业班阶段性测试(五)理科数学试题
2020高三·全国·专题练习
名校
6 . 已知函数
.
(1)解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35bd559ca747109ab682da7248dc30.png)
(2)若
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a05df8edae997c5ab235e54755ed33.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35bd559ca747109ab682da7248dc30.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95826a4a8086718b84e020387a53973c.png)
您最近一年使用:0次
解题方法
7 . 已知函数
.
(1)求不等式
的解集;
(2)已知函数
的最小值为
,且
,
,
都是正数,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e08ec174069357996bbc019e157997.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94eeafdf45063fe563d7c71a4cb5bff3.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e363788f18621baf47bce59e106a206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48de42fc90f6c80a503d8bea9d4412ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62be280a88124f783dd3fa6de2736914.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
.
(1)若不等式
有解,求实数
的最大值
;
(2)在(1)的条件下,若正实数
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e70f31117e377cb9ea1a2ed5700c3921.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aaee11552fe4c0863c104364d923359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)在(1)的条件下,若正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8242728ec43eb5ba68012f1cf2efe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f67da3adba52a5a2a98d4d94a22fbef8.png)
您最近一年使用:0次
2020-06-07更新
|
263次组卷
|
3卷引用:重庆市育才中学2020届高三下学期入学考试数学(理)试题
解题方法
9 . 已知函数
的最大值为2.
(1)求实数m的值;
(2)若a,b,c均为正数,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf96902764b635b1979bd420074e92a0.png)
(1)求实数m的值;
(2)若a,b,c均为正数,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3539640e5344567a1071b64751cecc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8720d2743b33079a807740dc0d761ad.png)
您最近一年使用:0次
10 . 已知函数
.
(1)若函数
无极值点,求
的取值范围;
(2)若
,记
为
的最大值,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3b5e0be7302f13d0357b964ef10604.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64bc2df5b21142079fe3ca6a0f87f225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d8a4cf957865fad1cb648fcd2cbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec46290ef0cf467f55cedcf48b382e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aef610d69fbcc10cfadf11aee73c76.png)
您最近一年使用:0次