名校
1 . 已知函数
,在同一个周期内,当
时,
取得最大值
:当
时,
取得最小值
,若
时,函数
有两个零点,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb99c6441405726bd58734360911eaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720091d877ca5e2837b0f410fb99631d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b283eb08db6f602ede1ae542c5e3662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c247f2c800689d4480b839c4f25667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a54a7061cdfaa63191608617cd7a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2 . 已知函数
,若存在实数
、
、
,使得
时,
,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149b7b82d1d7ed9d8cce0f9390c30208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40654ee8cf8ecfed92b81ce2aec0874a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e45e961dd36b8f85703c91f248da3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f2f3975a26f255ed96c148a579a6d2.png)
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名校
解题方法
3 . 已知变量x,y满足约束条件
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0795b853a4ea3c5e70661c1a3402558f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4489516aca67a6afe53fac2f1477f76.png)
您最近一年使用:0次
2020-02-18更新
|
355次组卷
|
5卷引用:河南省驻马店市2019-2020学年高二上学期期末数学(文)试题
解题方法
4 . 若方程
在
上的解为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe1de7b11e21e5cfb6a6a544d66b1c0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eacc25f1f8887c505e19228239ea9f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe1de7b11e21e5cfb6a6a544d66b1c0.png)
您最近一年使用:0次
5 . 设实数
、
满足
,则
的最大值为______ .
![](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/05d1ca9481e1ad7a5d1684604fef8f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4489516aca67a6afe53fac2f1477f76.png)
您最近一年使用:0次
2020-02-18更新
|
312次组卷
|
3卷引用:2020届河南省焦作市高三上学期第二次模拟考试数学(理)试题
解题方法
6 . 已知长方体
的体积为
,
,
平面
,若点
到直线
的距离与到直线
的距离相等,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/814397354c2ae1cb08e0271305970811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0041488020a3e19377b18a70fbf82e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c2f227b3ec9a65debb32a0395ffd62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b0a89a3706a6b234c5f217b34f916da.png)
您最近一年使用:0次
2020-02-18更新
|
352次组卷
|
2卷引用:2020届河南省焦作市高三上学期第二次模拟考试数学(理)试题
7 . 已知
是椭圆
的左焦点,
是椭圆
上的动点,
为一个定点,则
的最大值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a909cfbe59a736f3d2024723dba27c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dabad522c9ce2d1b341cc7942d80bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abeecbeb608c686ea8c36221a4d8fc46.png)
您最近一年使用:0次
2020-02-18更新
|
271次组卷
|
2卷引用:四川省资阳市2019-2020学年高二上学期期末数学(理)试题
8 . 设变量
满足约束条件
,则目标函数
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7edac77829e7aec29f8980f577959098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362e7d71bc9ca96a45614979acef27a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5defddee357c3b7f8f19ae663c3b887.png)
您最近一年使用:0次
9 . 函数
,则如下结论正确的序号是__________ .
①当
时,若
图像的对称轴为
,则
;
②当
时,若
的图像向右平移
单位长度后关于原点对称,则
;
③当
时,若
的图像在区间
内有且仅有一条对称轴,则
的取值范围为
;
④当
时,若集合
含有2020个元素,则
的取值范围为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e5e003e2b2ab4b6b7d28112b62df7e.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05a467ddaa138590b3b56615c2c42a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6103aca24b1b84faf0ef536d17a27325.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05a467ddaa138590b3b56615c2c42a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f2c534128f000447192a67395d1018.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10c2ee2c29562dccadc42f2121ef8642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7faee6c7c8bd4625d8f01c29b1a44cdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f962211d4f440645560ab6133860f0.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc96880accdf6cb45b99931063ac023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37b6a67ffc63b8209d4e495b2478b099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef510653deed7fb84c30f73c9963eca.png)
您最近一年使用:0次
名校
解题方法
10 . 过直线l:
上任意一点P作圆C:
的一条切线,切点为A,若存在定
,使得
恒成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba882a39bebb885dc429dd4fad534959.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026808536f6b6d265c778e23836fbf13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe115831e7a4a0cccfa3b4bd2e9943f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e4d19bf237a6fca67e0d01a9ddb726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba882a39bebb885dc429dd4fad534959.png)
您最近一年使用:0次
2020-02-18更新
|
851次组卷
|
7卷引用:2020届江苏省镇江市高三上学期第一次调研考试(期末)数学试题
2020届江苏省镇江市高三上学期第一次调研考试(期末)数学试题2020届高三2月第02期(考点08)(文科)-《新题速递·数学》江苏省连云港市灌云县第一中学2019-2020学年高三下学期3月线上考试数学试题2020届江苏省徐州中学、徐州一中高三下学期5月高考模拟数学试题(已下线)选择性必修第一册模块检测卷(基础过关)-2020-2021学年高二数学单元测试定心卷(人教A版2019选择性必修第一册)江苏省无锡市宜兴市官林中学2020届高三下学期开学考试数学试题河南省新密市第五高级中学2022-2023学年高二上学期第五次段考数学试题