1 . 已知方程C:
,
若方程C表示圆,求实数m的范围;
在方程表示圆时,该圆与直线l:
相交于M、N两点,且
,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b7f249dd2c12b9915a12764335dbff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b2152a2fc2b5c84e1f94523eb0a97f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d2a81a74f6f640f3f3ee1d2fba4b5c.png)
您最近一年使用:0次
2019-03-18更新
|
549次组卷
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2卷引用:【区级联考】重庆市九龙坡区2018-2019学年高二(上)期末数学(文科)试题
2 . 已知函数
.
(1)若
,求函数
在
处的切线方程;
(2)令
,讨论函数
的单调性;
(3)当
时,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac04e03f168f65b42da7d8daaba03f2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b71b0c86aefb7f7f1f2c87e180504c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
.
(1)求函数
的最小正周期;
(2)当
时,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a1360ed8d364726f16af5d6ac55a2d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d3e0fe057bb893461206c019547c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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4 . 甲乙两地生产某种产品,他们可以调出的数量分别为300吨、750吨.A,B,C三地需要该产品数量分别为200吨,450吨,400吨,甲地运往A,B,C三地的费用分别为6元/吨、3元/吨,5元/吨,乙地运往A,B,C三地的费用分别为5元/吨,9元/吨,6元/吨,问怎样调运,才能使总运费最小?
您最近一年使用:0次
名校
5 . 某校为了了解学生对电子竞技的兴趣,从该校高二年级的学生中随机抽取了
人进行检查,已知这
人中有
名男生对电子竞技有兴趣,而对电子竞技没兴趣的学生人数与电子竞技竞技有兴趣的女生人数一样多,且女生中有
的人对电子竞技有兴趣.
在被抽取的女生中与
名高二
班的学生,其中有
名女生对电子产品竞技有兴趣,先从这
名学生中随机抽取
人,求其中至少有
人对电子竞技有兴趣的概率;
完成下面的
列联表,并判断是否有
的把握认为“电子竞技的兴趣与性别有关”.
参考数据:
参考公式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6f1af4b44b2e97e8f319bab4ae9010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6503ca085e3ca5f2ba723b0dd66e210b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5a07d630899d5892d6c63f579e544f.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/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b72fcdc709e77910cd36a26369648b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c487ba8259608d3cb24fb594ffbd7b.png)
有兴趣 | 没兴趣 | 合计 | |
男生 | |||
女生 | |||
合计 |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3821f70c08c5180e9b3086d3c9610f.png)
您最近一年使用:0次
2019-07-17更新
|
439次组卷
|
3卷引用:重庆市南开中学2018-2019学年高二下学期期末考试理科数学试题
6 . 已知曲线
的极坐标方程为
,以极点为原点,极轴为
轴正半轴建立平面直角坐标系,直线
的参数方程为
(
为参数).
(1)将曲线
的极坐标方程化为直角坐标方程,并且指出曲线是什么曲线;
(2)若直线与
曲线
交于
,
两点,设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2030daf33fd69a0ef6ab1a2dedcc7a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dc92ad29632d82296f8e2216c48039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)将曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a3f21d4d834ba5b8b80dd56732c136.png)
您最近一年使用:0次
2020-02-18更新
|
340次组卷
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2卷引用:重庆市七校2018-2019学年高二下学期期末联考(文科)数学试题
7 . 如图,
中,
,ACDE是边长为6的正方形,平面
底面ABC.
求证:
平面EAB;
求几何体AEDCB的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a85dc7ffaf67456db861cb1ef95d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ff8f4eee27e5ead5ba9ffbe7f602e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f87c900f0aa09d5f9f1c04c1e01705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/8a24f539-f521-4d06-85b6-7a421cf2c73c.png?resizew=165)
您最近一年使用:0次
2019-03-18更新
|
472次组卷
|
2卷引用:【区级联考】重庆市九龙坡区2018-2019学年高二(上)期末数学(文科)试题
名校
8 . 已知函数
.
证明:
;
已知
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e64df9abaf7b6ec82bab42139348f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be61e0dd72a9cf9713e9367377e16223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad662afe32f5c6404501f4a1b84bd68e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61223cf5c1e46dc3f063f9ea2d1987a.png)
您最近一年使用:0次
2019-07-17更新
|
415次组卷
|
2卷引用:重庆市南开中学2018-2019学年高二下学期期末考试理科数学试题
9 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f8faf6ec42a6ddfee489252a10fcc7.png)
(1)若函数
在
上单调递增,求实数
的取值范围;
(2)设函数
,证明:
是函数
有两个零点的充分条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9798c9975860fa9ca90d9fbb31c40ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f8faf6ec42a6ddfee489252a10fcc7.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0534ca9439a3f8c5ef22c7fa66e7c69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
您最近一年使用:0次
10 . 已知直线
的斜率为
,且在y轴上的截距为
.
(Ⅰ)求直线
的方程,并把它化成一般式;
(Ⅱ)若直线
:
与直线
平行,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(Ⅰ)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/322796f8098393a2fb93753c1d2d026a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-08更新
|
250次组卷
|
3卷引用:重庆市大足区2018-2019学年高二上学期期末数学(文)试题
重庆市大足区2018-2019学年高二上学期期末数学(文)试题(已下线)3.2.1 直线的点斜式方程-2020-2021学年高一数学课时同步练(人教A版必修2)广东省潮州市湘桥区南春中学2021-2022学年高二上学期第一次月考数学试题