名校
解题方法
1 . 已知梯形
,
,
,
,
,
是线段
的中点.将
沿着
所在的直线翻折成四面体
,翻折的过程中下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d262480ffb55b7617f44b63f130c154a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() ![]() |
B.当直线![]() ![]() ![]() ![]() |
C.四面体![]() ![]() |
D.四面体![]() ![]() |
您最近一年使用:0次
解题方法
2 . 已知函数
,
.
(1)当
时,求证:
;
(2)若
是函数
的导函数,且
在定义域
内恒成立,求整数a的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c959ecfabe4d3d8f429f8c96467eb29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5175dc08a253b3fd0e306d015bbae502.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6292948411620a2c340542afedf898cd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5465c14a0e2e8705ee70cd4e88283a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
您最近一年使用:0次
3 . 在平面直角坐标系xOy中,已知抛物线
的焦点为F,过F的直线l与该抛物线交于A,B两点,过焦点F且垂直于直线l的直线
与抛物线C的准线交于点P.当直线l的斜率为1时,
的面积为
.
(1)求抛物线C的方程;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453ea8f3a2b85526b54bf453871c3820.png)
(1)求抛物线C的方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909c67622c58edaeb2b82e8d268c512f.png)
您最近一年使用:0次
2023-12-11更新
|
437次组卷
|
3卷引用:贵州省黔东南自治州镇远县文德民族中学校2022届高三上学期期末数学(理)试题
名校
解题方法
4 . 已知函数
,
的定义域为
,若对
,
,
,
成立,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e6357b4c2d778358dee5d222dc82f9.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/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/420a1784f8cbb7fd5536af525e66112d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a507b9ebb7edf6eb7ece7c91e56369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113c2a2712c6394ed86024edc460d70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a669b4be098e4e54f5b06d92835f55c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e6357b4c2d778358dee5d222dc82f9.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)当
时,讨论
的单调性;
(2)证明:当
时,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8dbfed1efce91fbd59095d025b1184.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b06387179d53c1e474fcfcb408b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87008291cdba83461d58dbc9426d777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9a01c0b3ce60a5d651bc8f5cdd557f.png)
您最近一年使用:0次
6 . 如图,已知圆
,点
为直线
上一动点,过点
引圆
的两条切线,切点分别为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/126fa9b0-d0c4-4a0f-a972-6a9d93f3e477.png?resizew=198)
(1)求直线
的方程,并写出直线
所经过的定点坐标;
(2)求线段
中点的轨迹方程(不必写出
的取值范围);
(3)若两条切线
与
轴分别交于
两点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8b74d61c82a73fd4dad8f122fe6fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aefcf9299f5c114ef8a072d3279d625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4180dae966f648d368a10edf3b7e3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/126fa9b0-d0c4-4a0f-a972-6a9d93f3e477.png?resizew=198)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af2d38cf365e4389c0d3f18ecfa890e.png)
(3)若两条切线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df8904b700810cfd3519798668aa35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8945494c50a464032e24690bdc17e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a670d12554358604dc27abf2eaf1732.png)
您最近一年使用:0次
2022-11-10更新
|
771次组卷
|
7卷引用:贵州省黔东南六校联盟2022-2023学年高二上学期期中联考数学试题(A)
7 . 已知函数
,则下列说法不正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7600000a9faf1960dab5306f721b15.png)
A.若![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2022-11-04更新
|
1215次组卷
|
7卷引用:贵州省黔东南六校联盟2022-2023学年高二上学期期中联考数学试题(A)
名校
8 . 在长方体
中,
,
,点
为侧面
内一动点,且满足
平面
,当
取最小值时,三棱锥
的所有顶点均在球
的球面上,则球
的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ececd428cc1a2afe8ee8a6b14b726cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d901e6127c96d778f1451bb98a49c962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c407eeb34204a1df967b8fbe481cb04d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7462cd3e7522c4fec73e5b0e7c7b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-02更新
|
633次组卷
|
2卷引用:贵州省黔东南州凯里市第一中学2022-2023学年高二上学期期中数学试题
名校
解题方法
9 . 已知函数
,
(a为常数).
(1)讨论
的单调性;
(2)若对任意
,不等式
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89b35fb25c8a6aafffb7da984c74a0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9b00c124ee56e0acef3d9f10f4cc22.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ecc70df44c7dae5330a2dcdb8a690cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
您最近一年使用:0次
2022-10-26更新
|
452次组卷
|
4卷引用:贵州省黔东南州凯里市第一中学2023届高三上学期第四次月考数学(文)试题
贵州省黔东南州凯里市第一中学2023届高三上学期第四次月考数学(文)试题四川省广安市岳池县2022-2023学年高三上学期10月月考数学(文)试题江西省宜春市宜丰县宜丰中学2022-2023学年高二下学期3月月考数学试题(已下线)5.2 导数的运算(练习)-高二数学同步精品课堂(苏教版2019选择性必修第一册)
名校
解题方法
10 . 已知函数
,若不等式
对任意
均成立,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ebf85b7923d995fdbee14491dcf52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab61e55a11e690225b5a800b3b1bc8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a6e5b8aaed692d8be521e82df5a230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-10-25更新
|
1029次组卷
|
5卷引用:贵州省黔东南州凯里市第一中学2023届高三上学期第四次月考数学(文)试题