名校
1 . 已知函数
.
(1)求
的单调区间;
(2)设
,证明:
只有一个极值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/251812390c90baec32748b1e0bf137b0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f75b7e543d98f581e6628e2aada4c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2316563595e29fd4279845ab8afc5ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b23f8ddcdd94e25a39a10b22fca2570.png)
您最近一年使用:0次
2019-05-22更新
|
306次组卷
|
2卷引用:【全国百强校】贵州省凯里市第一中学2018-2019学年高二下学期期中考试数学(理)试题
名校
2 . 已知椭圆
,
,
分别为椭圆的左右焦点,离心率
,上顶点
.
(1)求椭圆的方程;
(2)是否存在过点
且斜率不为0的直线
交椭圆于
两点,且
满足,若存在,求出该直线方程,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2ed2c4d71e800eb016c4255ceede08.png)
(1)求椭圆的方程;
(2)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a3846662f42d054bc72b0802459b41c.png)
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2019-05-22更新
|
380次组卷
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2卷引用:【全国百强校】贵州省凯里市第一中学2018-2019学年高二下学期期中考试数学(理)试题
名校
3 . 已知
的三个顶点落在半径为
的球
的表面上,三角形有一个角为
且其对边长为3,球心
到
所在的平面的距离恰好等于半径
的一半,点
为球面上任意一点,则
三棱锥的体积的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-05-22更新
|
929次组卷
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2卷引用:【全国百强校】贵州省凯里市第一中学2018-2019学年高二下学期期中考试数学(理)试题
名校
4 . 已知函数
满足:
,且
,当
时,
,则函数
在点
的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a979a0e7b3c11c382a275961fd3f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08bfcdc0a18e5362cccee11f4f6ffd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e482dd69ac1cf7f06552fdf25a217c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98335694ba5374dbac3b848f7b0ea507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c959ab293ef3ecbba70b635da3e2a8.png)
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5 . 已知数列
满足
,且
.
(1)求数列
的通项公式;
(2)设
,记
的前项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba83359167d8ca8c9eafa8a23f34a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b93ce1c37f1841ccbb1998ed059bdf.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b31c12673390783878476b8213e86ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94351ce858fa3f3a09cfadc2d23d7253.png)
您最近一年使用:0次
名校
6 . 如图,直三棱柱
中,
,
,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/9fd1e6f0-0243-4aed-8d51-98b4d64c2ea3.png?resizew=192)
(I)若
为
上的一点,且
与直线
垂直,求
的值;
(Ⅱ)在(I)的条件下,设异面直线
与
所成的角为45°,求直线
与平面
成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeed487430a5b8a330f2d0c52166521a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/9fd1e6f0-0243-4aed-8d51-98b4d64c2ea3.png?resizew=192)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd338233af4b4df188757fbf642098f.png)
(Ⅱ)在(I)的条件下,设异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b7903de4be7d5dc1175cfbf6e8da9f.png)
您最近一年使用:0次
2019-05-13更新
|
5273次组卷
|
8卷引用:贵州省黔南布依族苗族自治州都匀市第一中学2019-2020学年高二上学期期中数学(理)试题
名校
7 . 设数列满足
.
(1)求的通项公式;
(2)若
,求数列
的前
项和
的最大值及此时的
值;
(3)求数列
的前
项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804d1b0c1af07dde92157d5972ad293a.png)
(1)求的通项公式;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6505fe1f0433c4cccce01192edac4826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a7db9c4fa7d2d13bef10c7428fa0ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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2019-05-07更新
|
1425次组卷
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4卷引用:【全国百强校】贵州省铜仁市第一中学2018-2019学年高一下学期期中考试数学试题
【全国百强校】贵州省铜仁市第一中学2018-2019学年高一下学期期中考试数学试题安徽省六安市毛坦厂中学2020-2021学年高三(历届)上学期11月月考数学(理)试题(已下线)2022年全国高考甲卷数学(文)试题变式题9-12题(已下线)2022年全国高考甲卷数学(文)试题变式题17-20题
名校
8 . 已知点
在
的边
上,且
,若
,则
的最大值为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53502463cc76201000e02df314e58769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de966c316db1013defc56372fcf814e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d4bcf42914cbd036874c6a3f2ba500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532fb9d8a0715b513e9e3f144ea264e9.png)
您最近一年使用:0次
名校
9 . 已知函数
,
.
(1)求函数
的单调区间及极值;
(2)设
,当
时,存在
,
,使方程
成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a936fda68a5a673adcb1d18db2ed00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b89e51552149d4f6845d559ff0c4d491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4b788b0775c6f40304045449860e63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e782457ec0edfb09c01da0c26ec6710e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-04-15更新
|
1642次组卷
|
6卷引用:贵州省思南中学2018-2019学年高二下学期期中考试数学(理)试题
10 . 已知函数
存在极值点
,且
,其中
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cac0d6e6bb59325e5c10de489a725fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a08e4f509910497e060863e218316b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ffdcdfa3481bb09d2d064294784410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055651db79efecb545bf4849e16defde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cac0d6e6bb59325e5c10de489a725fe.png)
A.3 | B.2 | C.1 | D.0 |
您最近一年使用:0次
2019-04-08更新
|
843次组卷
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2卷引用:【校级联考】贵州省遵义市五校联考2018-2019学年高二下学期期中数学(理)试题