名校
解题方法
1 . “
且
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e84dbb03e8c627ff11d5c7aeb0c8b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef91cfaf88e078fd8a43c0add81f087c.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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2 . 如图,在四棱锥
中,
,
,
,
,
,
,点
为
的中点.
(1)证明:
平面
;
(2)当直线
与平面
所成角为
时,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc1bc8449eeafb19ddde59d8f3c77db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25412aade92bdf99a3dc104bd0e356e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f397e61359ce5470234d6b4938126f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ec382b9d66e43e7fa8f75eccb0d3bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6060d9a82ed5405a1ea8cd824448b6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515965c22d2950b592c096c6e3bdfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866c22ed884b41b50235b50b25c6ed0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/5/43eec34e-72bc-46a6-8085-ea36ce93b637.png?resizew=162)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4862958e60c245dc9a5d9cb57d31eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7ea65be0351e839d45d598dfb254b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33b7213d99a817bff19bcf740a0697c.png)
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名校
解题方法
3 . “
”是“函数
在区间
上单调递增”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4777544677ef4dc14225c2c355f3a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d6243e93c41978871cb23d8e66148d.png)
A.充要条件 | B.充分不必要条件 |
C.必要不充分条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2024-03-01更新
|
486次组卷
|
2卷引用:湖北省武汉市5G联合体2022-2023学年高一上学期期末考试数学试卷
名校
4 . 下列说法正确的有( )
A.“![]() ![]() |
B.命题“![]() |
C.命题“![]() ![]() |
D.“![]() ![]() ![]() |
您最近一年使用:0次
2024-03-01更新
|
303次组卷
|
3卷引用:江苏省无锡市第一中学2023-2024学年高一上学期期末数学试卷(艺术班)
5 . 已知
,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d32d1a5a0732c7e4af737555e44ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d217c7b12e12e5fb67472452518859ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b7345527910e03453d8657b2efbb02.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
解题方法
6 . 给出下列四个选项中,其中正确的选项有( )
A.若角![]() ![]() ![]() ![]() |
B.设角![]() ![]() |
C.命题“![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
解题方法
7 . 在①
;②“
”是“
”的必要条件;③
这三个条件中任选一个,补充到下面的问题中,并解答.
间题:已知集合
.
(1)当
时,求
;
(2)若___________,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36be0d45c320e74b3bfee0aa5737fb0b.png)
间题:已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad7e0a446b9bc33137cf383563db783.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da331a8c58b97333fcf642c92f089e0c.png)
(2)若___________,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
8 . 已知命题“对
,都有
恒成立”为真,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddaee5805762091f97771d8a43038dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e735f2041191be8e36c9af6d3c0619.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
9 . 设函数
,其中
.
(1)若命题“
,
”为假命题,求实数
的取值范围;
(2)判断
在区间
上的单调性,并用函数单调性的定义证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d2c4d804f4c0120d38e2fc897a9c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
(1)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ce82779a834a6871c96515eaaa5571.png)
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解题方法
10 . 下列结论正确的是( )
A.函数![]() ![]() ![]() |
B.![]() ![]() |
C.![]() ![]() ![]() |
D.定义在![]() ![]() ![]() ![]() ![]() |
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