名校
解题方法
1 . 设
,若
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf57b53b43c65658f2e28c80f500933a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd4067a19eeb07474557fe7b2508880.png)
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2021-08-16更新
|
428次组卷
|
2卷引用:黑龙江省哈尔滨市第三中学校2020-2021学年高二下学期期末数学(文)试题
名校
解题方法
2 . 设
,
,
,若
,则
的最小值为______ .
![](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/0097ca400d4619a94c4282c1ef6ec68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf57b53b43c65658f2e28c80f500933a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed134931661d6724fbeceb55c4a7d49.png)
您最近一年使用:0次
3 . 已知
,若对于任意的
,不等式
恒成立,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc8865586c4eb192e174d1454c9e281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
您最近一年使用:0次
解题方法
4 . 已知
,函数
.若
是奇函数但不是偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ ;若
对一切实数x都成立,则a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ea471b4f6682519e1627f3ac3eb5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
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5 . 若函数
在
上的最大值为
,最小值为
,则
______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4731b641977e94fb0b2005e891bf07e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9499809a8eecf12a60fafbac8bf8e59e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5b2afaa68c00c7e8886a8e0cbb5af.png)
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解题方法
6 . 能够说明“设a,b,c是任意实数.若c<b<a,则ab>ac”是假命题的一组整数a,b,c的值依次为________ .
您最近一年使用:0次
解题方法
7 . 能说明“若
,
,则
”是假命题的一组a,b的值依次为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e42953357fe79c16248ef4c79e6089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b3ebed48714649e40c83f3518af52a.png)
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8 . 不等式
的解集是
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c82cebe5dbac0195090a70bd55d1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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9 . 不等式
的解集是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ab03871f0955254ea43142a7f66cc3.png)
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10 . 不等式
的解集为
,则方程
的两根之和为_______________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a14ea7d29e1b91908b82ccaa362b33b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9283b65d3410859e8fe2f440a89da3c.png)
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