解题方法
1 . 已知函数
.
(1)若
,试求不等式
的解集;
(2)若
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373a936dff70b5f90333cd3ad26c0909.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a686da2abc91f69dd0405b8e315f3e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbff8af2cae4b64aa92f5d50045ea33.png)
您最近一年使用:0次
2021-06-06更新
|
301次组卷
|
3卷引用:山西省2021届高考名校联考押题卷(三模)数学(文)试题
20-21高三下·全国·阶段练习
解题方法
2 . 已知函数
.
(Ⅰ)求不等式
的解集;
(Ⅱ)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1c49c4cd8959bf39256768b52be901.png)
(Ⅰ)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ec4add31dd4c2d48aadbb7bd13e607.png)
(Ⅱ)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a281002f4437bce2e5a2b2eaf567346f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 设函数
的最小值为
.
(1)求
的值;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65eb5289b08ffbe4e17ba7949987a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445dd783a0f731427bde50fea887c1ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b850afcdf34cf2d64c976547d3059d8.png)
您最近一年使用:0次
解题方法
4 . 已知
.
(Ⅰ)当
时,求不等式
的解集;
(Ⅱ)若
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38eec29f2da3c237449f94099990982a.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58427d5aa7deeca47c8789241913f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c947ef0727327649efc00bcbefa45756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-05-28更新
|
730次组卷
|
3卷引用:贵州省毕节市2021届高三二模数学(理)试题
名校
5 . 已知函数
.
(1)在平面直角坐标系中画出函数
的图象;
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718915193741312/2725367495434240/STEM/9b7e25d6-6f28-4053-b2fa-f99fd7d4675f.png?resizew=280)
(2)若对
,
恒成立,t的最小值为m,且正实数a,b,c满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19778e999ac9927ee65b88d4439abac.png)
(1)在平面直角坐标系中画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718915193741312/2725367495434240/STEM/9b7e25d6-6f28-4053-b2fa-f99fd7d4675f.png?resizew=280)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/957b41ff9d0f5c4e94e32001e76f8532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c321b3d7476442ac8aabc81a553a72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959f353bd4c4ff97ede79e76724daf36.png)
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2021-05-20更新
|
1041次组卷
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6卷引用:河南省郑州市2021届高三三模文科数学试题
河南省郑州市2021届高三三模文科数学试题河南省郑州市2021届高三三模理科数学试题(已下线)专题3.12—函数的图像-2022届高三数学一轮复习精讲精练(已下线)考向12 函数的图像(重点)河南省重点高中2021-2022学年高三下学期阶段性调研联考二文科数学试题云南民族大学附属中学2022届高三高考押题卷二数学(理)试题
名校
解题方法
6 . 已知
,
.
(1)当
时,解关于x的不等式
;
(2)若
的解集为R,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668da4aed6135f5523dfce3d8c14b43b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9390806946bbf0c5f7ead93e610e1f08.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
您最近一年使用:0次
2021-05-17更新
|
495次组卷
|
3卷引用:四川省雅安市2021届高三三模数学(理)试题
名校
7 . 已知函数
,不等式
的解集为
.
(Ⅰ)求
,
的值;
(Ⅱ)若三个实数
,
,
,满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f545b3329738dc5deb478e573f455ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32aa8df31c43ad6b08f0784d3dea7747.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe2de239b6e086a4a458c5c13d33b6cb.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(Ⅱ)若三个实数
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d86be2de99fbf7f99cd54ab399146b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3a91864edb8d0449377396638bffa7.png)
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2021-05-16更新
|
652次组卷
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11卷引用:山西省吕梁市2021届高三三模数学(文)试题
山西省吕梁市2021届高三三模数学(文)试题山西省吕梁市2021届高三三模数学(理)试题陕西省2021届高三下学期教学质量检测测评(五)文科数学试题陕西省2021届高三下学期教学质量检测测评(五)理科数学试题(已下线)“超级全能生”2021届高三全国卷地区5月联考试题(乙卷)数学(文)试题(已下线)“超级全能生”2021届高三全国卷地区5月联考试题(乙卷)数学(理)试题(已下线)“超级全能生”2021届高三全国卷地区5月联考试题(甲卷)数学(理)试题(已下线)“超级全能生”2021届高三全国卷地区5月联考试题(甲卷)数学(文)试题江西省新余市第一中学2021届高三全真模拟考试数学(理)试题(已下线)押第23题 不等式选讲-备战2021年高考数学(文)临考题号押题(全国卷2)(已下线)专题11-2 不等式选讲归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
名校
解题方法
8 . 已知函数
.
(1)解关于
的不等式
;
(2)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4d5ce98018109553e2e43e6f59dd00.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0be7608a28500208fefe0746951829d.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d24f298832b360a3d39a4d15718c54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
9 . 已知函数
.
(1)求函数
的最小值
;
(2)若
,
,
均为大于1的实数,且满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72c3439bd5410c955c14feaa8da484f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](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/be9a8ddeb83566685cf31c319bd0484b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0302c6e981d62f1e7b7e926a3dd2c69.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10905f5554f6d0b46a902f8bf722ceba.png)
(1)若
的解集为
,求实数
的值;
(2)当
且
时,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10905f5554f6d0b46a902f8bf722ceba.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c996a4c596f4a613b32563626855a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0581fcaa2dcf917479091fded7f5b21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f48697046ef1531aaaf9e18cfb27254.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e14727ca623ebd50616fb6a36d01c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae028e7006bc28f608c93c826bba75d.png)
您最近一年使用:0次