解题方法
1 . 已知当
时,
恒成立.
(1)求
的取值范围;
(2)若
,
的最大值为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd7d2bb9fd6de312a742ef10c81b9b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dee6fb41faf4f57c65b1f21cfab4e6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0102c694f0d246336867e2fe17116909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b4027dd0f9df0c731684674b4c164c.png)
您最近一年使用:0次
解题方法
2 . 已知函数.
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c7679f885826301bb5a826ba7bcea01.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11218ed1a943f42d041e51545bd787f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-03-31更新
|
248次组卷
|
2卷引用:陕西省咸阳市2024届高三下学期高考模拟检测(二)数学(文科)试题
名校
解题方法
3 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最小值为
,且
,
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cccdd687604a04f9575ea9fb1d19585e.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5d7846b4f08eee0725e2d5024a27b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55db12bc9a3b7bd2e6decaaea6ba387e.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/3bcbcf26-5854-4221-918e-c6498c424751.png?resizew=240)
(1)画出函数
的图象;
(2)设函数
的最大值为
,若正实数
,
,
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa09a9d9e1ef99bf78e188b8424a709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/19/3bcbcf26-5854-4221-918e-c6498c424751.png?resizew=240)
(1)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/91beeecb519bfc3c9afbd86f0537e589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f926175f731ce184bb725feacb0985.png)
您最近一年使用:0次
2024-02-19更新
|
159次组卷
|
2卷引用:陕西省咸阳市2024届高三上学期模拟检测(一)文科数学试题
名校
解题方法
5 . 已知函数
的图象关于直线
对称.
(1)求m的值,及
的最小值;
(2)设
,
均为正数,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dac5ee9b22607c237a9e0d0b8257d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(1)求m的值,及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](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/ab04de6651256f6281e9f4c1dc3c7955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce460941cf3ff54ccb6aec5085689a91.png)
您最近一年使用:0次
6 . (1)已知
,
,求
的取值范围;
(2)已知
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b5924447acadcd662bfa23899f99d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24aadffefafd7505d7920d5f6bcbbaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ec08be6e5edde3502faba89bb505e0.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1310f19fc784a7715514aab0aa1eadb1.png)
您最近一年使用:0次
名校
解题方法
7 . 设函数
.
(1)求不等式
的解集;
(2)若关于
的不等式
的解集非空,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7118721b45bdc672c009c64140e103e0.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6be2db6ae4232d30412c4b2a4f757f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-09-17更新
|
198次组卷
|
2卷引用:陕西省咸阳市武功县普集高级中学2023届高三上学期11月期中数学(理)试题
名校
解题方法
8 . 已知函数
的最小值为6.
(1)求
的最大值;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79bdc04e303f4c88a9366908480abf48.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc2df8e94e776b031e2cc1bcf19796e.png)
您最近一年使用:0次
名校
9 . (1)已知函数
,若对任意
,不等式
恒成立,求实数
的取值范围;
(2)已知正数
,
满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcaf3a079b36a11f419c22e265a31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f197f9bb774f552d6b114f6e817463e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知正数
![](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/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4cac7894516c8495a7f848ef8c9533.png)
您最近一年使用:0次
2023-05-28更新
|
148次组卷
|
2卷引用:陕西省咸阳市武功县普集高级中学2023届高三下学期模拟预测(6)文科数学试题
名校
解题方法
10 . 已知函数
.
(1)解不等式
;
(2)已知
的最小值为
,正实数
,
满足
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20ca5659980f4f2a09b31f6b512e9a1.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/990d3feee85e869ea9ab561ff63d46a2.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/ffb3719fc3c69af58f27c7fafff84e26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3910a0f217d8109b9467f740fc84a73d.png)
您最近一年使用:0次
2023-05-26更新
|
776次组卷
|
5卷引用:陕西省武功县普集高级中学2023届高三下学期5月四模理科数学试题