名校
解题方法
1 . 下列说法正确的是( )
A.命题“若![]() ![]() ![]() ![]() ![]() ![]() |
B.双曲线![]() ![]() ![]() ![]() |
C.命题“![]() ![]() ![]() ![]() |
D.若一组样本数据![]() ![]() ![]() ![]() |
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名校
2 . 给出下列四个命题,其中假命题 的个数为( )
①
,使
是幂函数;
②若
只有一个零点,则
;
③命题“若
且
,则
”的否命题为“若
且
,则
”;
④函数
在区间
上单调递增,则
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7d73907aea5c6375fb9fc15c1033ff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a0c3426c2ee788c5b259b26994ea2f.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb635f785541935edc8bef1c30ba5483.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
③命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d97c5dd615b7752e1eb6c139891f54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76478bcf12d74ea096b0a46bd6bdf649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0a2c46148393f1d7104d75e03522bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4ba63ab8d2e34c6714f87698852cff.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad96a05254c798f3e28e715c309f9b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72487c60611c53ff7b54e9e8b9931b76.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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名校
解题方法
3 . 下列命题中,结论为真命题的组合是( )
①“
”是“直线
与直线
相互垂直”的充分而不必要条件
②若命题“
”为假命题,则命题
一定是假命题
③
是
的必要不充分条件
④双曲线
被点
平分的弦所在的直线方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0947dc8f5ba116aaf3239d66adc7474.png)
⑤已知过点
的直线
与圆
的交点个数有2个.
①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8493a0cd10d3d0399173c04163740a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f11b38211816b749811e8f4648e8bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00fc5596521e8da73990f853282cbc2.png)
②若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d4eed113aa69a7d973c6410bae7ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753bc7b46730ab08df9ee4488ce34986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e54bd9f96e4e7db247df972a5319532.png)
④双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d34cf4ed961f4052ed35c7475c7d32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d3bfa155ad67018da4d65815c5e5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0947dc8f5ba116aaf3239d66adc7474.png)
⑤已知过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/623afc24f2227004b0e1b3922dfb954b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6679a94c414a3aa0a24ac79ec27f0a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08227ca941898eb34941f446ca8b1de8.png)
A.①③④ | B.②③④ | C.①③⑤ | D.①②⑤ |
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2021-12-08更新
|
844次组卷
|
6卷引用:四川省成都市树德中学2021-2022学年高二上学期11月阶段性测试数学(理科)试题
名校
解题方法
4 . 给出下列命题,其中真命题为( ).
①随机变量
,若
,则
;
②已知事件
与
独立,当
时,若
,则
;
③方程“
表示双曲线”是“方程
表示椭圆”的充要条件;
④用数学归纳法证明不等式
时,当
时,不等式左边应在
的基础上加上
;
①随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c1ed67167078ea4f5f1ee53ee14164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf02170d70b68a73c3cdac41f17a1c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2753dc1c83d54044b89e628a7eb247f8.png)
②已知事件
![](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/5b2a3318f82fec39c53c0e4fea00f75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bfdb88d4b3e7b50d84d71706ff03f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6f742dff4b78976152d260463f8030.png)
③方程“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296f6b73bcb1ea61bff5367a9a918613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8691b79e97b728da70686e72561034d.png)
④用数学归纳法证明不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9f531680802aa7e55f57502015e9d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0538ee5c5fc6e389368e0fc64f9e07f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6c178899e83aa12116c2105d30351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342c18c32995d372c739d3565fabae75.png)
A.①②③ | B.①④ | C.①② | D.①②③④ |
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5 . 下列命题是真命题的是( )
A.函数![]() |
B.命题“![]() ![]() ![]() ![]() |
C.若命题![]() ![]() |
D.“若![]() ![]() ![]() ![]() |
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