名校
1 . 函数
的定义域为
,若存在一次函数
,使得对于任意的
,都有
恒成立,则称函数
在
上的弱渐进函数.下列结论正确的是______ .(写出所有正确命题的序号)
①
是
在
上的弱渐进函数;
②
是
在
上的弱渐进函数;
③
是
在
上的弱渐进函数;
④
是
在
上的弱渐进函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26b255a8741a6ea41b372b184c560e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8893cfe1ac6b67bdb12cbd3e540186c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae63d882de903494cb145bfed14fcb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc69dd6b191f31ea8d87f867a456a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26b255a8741a6ea41b372b184c560e5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4306fb6d5419322b4b7b9140e06e43a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/458cbf06122152fe8d62550c6873faa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a117e2654de2baf925540cca08cbec.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7629b32068eceefee92962b82645b6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b639ac9599358d08bd6e1c389ceb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a117e2654de2baf925540cca08cbec.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4538f7b6692d02fc3c2909b488632c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7ed99a74e126a05cb520f19c094020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a117e2654de2baf925540cca08cbec.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa1c68cebf2203d277f61cfdbacf175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a05ebb52ecf575c36d66163955c8f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a117e2654de2baf925540cca08cbec.png)
您最近一年使用:0次
名校
2 . 曲线
在点
处的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9deb2998f4067962483c8503572c5c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3908ad61f1cea086545c613eb01d22d.png)
您最近一年使用:0次
2020-03-19更新
|
351次组卷
|
4卷引用:2019届云师大附中高三高考适应性月考(三)数学(文)试题
名校
3 . 某学校为更好进行校纪、校风管理,争创文明学校,由志愿者组成“小红帽”监督岗,对全校的不文明行为进行监督管理,对有不文明行为者进行批评教育,并作详细的登记,以便跟踪调查下表是
个周内不文明行为人次统计数据:
(1)请利用所给数据求不文明人次
与周次
之间的回归直线方程
,并预测该学校第
周的不文明人次;
(2)从第
周到第
周的记录得知,高一年级有
位同学,高二年级有
位同学已经有
次不文明行为.学校德育处决定先从这
人中任选
人进行重点教育,求抽到的两人恰好来自同一年级的概率
参考公式:
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
周次 | ![]() | ![]() | ![]() | ![]() | ![]() |
不文明行为人次 | ![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929ef3bed0a4bdd22f39e036506dc481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
(2)从第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
参考公式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80891a260cbb502a4c20449a6d47d67e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933a6416a587c8c28405113ac7c39ea5.png)
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名校
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b7c75f961984b6b9c12773eef0b2a1.png)
(1)当
时,求
的单调区间;
(2)当
时,求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b7c75f961984b6b9c12773eef0b2a1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baeb22a418cd39273d94dd9a28bbf827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-03-19更新
|
513次组卷
|
3卷引用:2019届云师大附中高三高考适应性月考(三)数学(文)试题
名校
5 . 在
中,中线
交边
于点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77fd4fbecbc6d4fc6c151596d654211.png)
(1)求
的长
(2)求
的面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77fd4fbecbc6d4fc6c151596d654211.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
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解题方法
6 . 已知
;为椭圆
的左、右焦点,过
作斜率为
的直线
交椭圆
于
两点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2651eb4d7ce46d5cd01728269813f623.png)
(1)求椭圆
的方程;
(2)过线段
上任意一点
(不含端点),作直线
与
垂直,交椭圆
于
两点,求四边形
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2651eb4d7ce46d5cd01728269813f623.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67346d0f913f378b4305ca5554c9d259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
您最近一年使用:0次
2020-03-19更新
|
421次组卷
|
3卷引用:2019届云师大附中高三高考适应性月考(三)数学(文)试题
名校
解题方法
7 . 如图,网格纸上小正方形的边长为
,粗实线画出的是某多面体的三视图,则该多面体的体积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/ea38cdf4-0ad9-4ff8-ab3c-316d75730114.png?resizew=193)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/ea38cdf4-0ad9-4ff8-ab3c-316d75730114.png?resizew=193)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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解题方法
8 . 如图所示的流程图,最后输出的
的值为( )
![](https://img.xkw.com/dksih/QBM/2020/3/17/2421475274309632/2422798802444288/STEM/15b40920-cc16-4dcc-b0ae-ff97dcbcadda.png?resizew=277)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2020/3/17/2421475274309632/2422798802444288/STEM/15b40920-cc16-4dcc-b0ae-ff97dcbcadda.png?resizew=277)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知
是抛物线
的焦点,其准线与
轴交于
点,过
的直线
与抛物线交于
两点,设
的斜率分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867c2ad286e5596fea9440b4c0f7dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
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10 . 在正项等比数列
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0654a64f19ab962be8cf1ec90ced4c27.png)
______ . (用数字及
表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b86f2925182d75faf937c773bebe77d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0654a64f19ab962be8cf1ec90ced4c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次