解题方法
1 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292d91ac0468e87556e520d17e850ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3927343b79e4b46b325aabe9d4bd253a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-03更新
|
1326次组卷
|
3卷引用:四川省遂宁绿然国际学校2021-2022学年高一上学期期末数学试题
名校
解题方法
2 . 若复数
为实数,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648a551b0f92999da1f1ecfed5d5ab87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2024-01-02更新
|
495次组卷
|
2卷引用:四川省眉山市仁寿县铧强中学2021-2022学年高二上学期期末模拟理科数学试题
名校
3 . 已知椭圆
:
的一个焦点为
,且过点
.
(1)求椭圆
的方程;
(2)设
,
,
,点M是椭圆C上一点,且M不在坐标轴上.若直线
与直线
交于点
,直线
与直线
交于点
.试判断
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351e9899738f59b14dc94001b8b270b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee5a1d7cc1501e44c13390c54ba39f80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed0e135ad05dddd5ec57678af73433d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c2cc110e46ae4b3432814810e28bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668438e15423368cd744445e824d18a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
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4 . 联想祖暅原理(夹在两个平行平面间的几何体,被平行于这两个平面的任何一个平面所截,如果截得的两个截面的面积总相等,那么这两个几何体的体积相等),请计算:由曲线
,
,直线
,
轴所围成的平面几何图形的面积等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eae1b87c23b45ce5e5e74d5b1d73234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc7acbe364ce32f64eb97f29e66d043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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名校
5 . 总体编号为01,02,…,19,20的20个个体组成.利用下面的随机数表选取5个个体,选取方法是从随机数表第1行的第5列和第6列数字开始由左到右依次选取两个数字,则选出来的第5个个体的编号为_______ .
7816 6572 0802 6314 0214 4319 9714 0198
3204 9234 4936 8200 3623 4869 6938 7181
7816 6572 0802 6314 0214 4319 9714 0198
3204 9234 4936 8200 3623 4869 6938 7181
您最近一年使用:0次
2023-08-02更新
|
369次组卷
|
4卷引用:四川省遂宁市绿然教科院2021-2022学年高二上学期期末联考文科数学试题
解题方法
6 . 如图,正三角形
与正方形
所在的平面互相垂直,
、
分别是棱
、
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/1fd61801-dd94-44dd-a177-edf7f718aed7.png?resizew=165)
(1)求证:
平面
;
(2)求证:平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/15/1fd61801-dd94-44dd-a177-edf7f718aed7.png?resizew=165)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,函数
,其中
,若函数
恰有3个零点,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6609fc176782efa74700171c285c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c8cd86b011e25a18dcee85aae0b58f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 已知
,
,若
,则
的取值范围__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f641f04dfe10bd80166b7b238ffeb1af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2fa079a4cd82fd192c89faecad139b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
9 . 欧阳修《卖油翁》中写到:(翁)乃取一葫芦置于地,以钱覆其口,徐以杓酌油沥之,自钱孔入,而钱不湿,卖油翁的技艺让人叹为观止.设铜钱是直径为
的圆,中间有边长为
的正方形孔,若你随机向铜钱上滴一滴油,则油(油滴的大小忽略不计)正好落入孔中的概率( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d8c72088c5ebef12ba11a92d6d1ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d7a89cec433895c83472a8938468ab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-18更新
|
124次组卷
|
2卷引用:四川省遂宁市绿然教科院2021-2022学年高二上学期期末联考文科数学试题
解题方法
10 . 已知函数
为
上的增函数,则满足
的实数x的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b569c49152029cda5db24606fefb7f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次