1 . 已知集合
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a031586c36a71a636a6b8ea34d1b18c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54d5b50813679a3b555d6896d2779a6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 下列命题中正确命题的个数是
①“若
,则
”的逆否命题为“若
,则
”;
②“
”是“
”的必要不充分条件;
③若“
”为假命题,则
,
均为假命题;
④若命题
:
,
,则
:
,
.
①“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a678cd018f89c3518645bc8439805ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31be670d32e753012125c503f2f3be56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39d87d0880cedf1b1becc6bcb3a7c3db.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb3e3f3a5ee26b44931b0b1a5b4723e3.png)
③若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
④若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2939abf9f1755ea304eeb1e73063cba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8324cd30a90a7fa5c80543eb7456ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264dab145ceba44696a6ee63b1e1549d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 在直角坐标系
中,若直线
:
(
为参数)过椭圆
:
(
为参数)的左顶点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226216d4857ce86ba3fc6571b0fb3b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edcce77501be4155a510a59a1c062a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知
,函数
,
,设
:若函数
在
上的值域为
,则
,
:函数
的图象不经过第四象限.
(1)若
,判断
,
的真假;
(2)若
为真,
为假,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fff4d51a6103822dfba0cdc2a053900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1239715891dc5acd5a0f1677d000052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91b3592e2dce9cc8639ca9d30e12bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/095266effac14437ca65f59f24079b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2019-09-23更新
|
354次组卷
|
6卷引用:吉林省扶余市第一中学2018-2019学年高二下学期期末数学(文)试题
名校
5 . 在
中,角
的对边分别是
,若
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ae8e92dd3119d41f2c830ea526516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ace74bfb716753490ebe0e740ff5baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5edaee40550a87337a23ea8aa1a10ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
A.1 | B.![]() | C.![]() | D.![]() |
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2019-07-30更新
|
894次组卷
|
4卷引用:河北省枣强中学2018-2019学年高二下学期期末数学(理)试题
河北省枣强中学2018-2019学年高二下学期期末数学(理)试题(已下线)2019年9月4日《每日一题》2020一轮复习(理)——正弦定理和余弦定理(1)(已下线)2019年9月6日《每日一题》2020一轮复习(文)——正弦定理和余弦定理(1)河南省豫西名校2019-2020学年高二上学期第一次联考数学试题
名校
6 . 已知函数
为
的极值点,则关于
的不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9d5c4260850947374fcd86baa1ee2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88aa5d5020fb9f57d4403d1de081f27.png)
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