2010·黑龙江·三模
1 . 给出下列四个命题:
①设
,则
且
的充要条件是
且
;
②已知
,若
,则满足
的概率为
;
③命题“
”的否定是“
”;
④已知
个散点
的线性回归方程为
,若
,(其中
,
),则此回归直线必经过点
.
则正确命题序号为__________________ .
①设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4052657cfcf31f17fcd91b20d990cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8325e253d8c7d9f93de39db5c4b20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5e8836124e3cb45de298265c3265ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b281d412ab1d0d5d172d79a7d9fb588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0031633e2cb3db1d8ec0ec0fed4609.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6e3409a0f5a147d1d7f210cb76d9c9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79eea5c0bf58526a18067c2028869870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b022bff07068b3e9cbcb091bb347a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32544f2492735703d3899efc6bd71865.png)
③命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0076626d24123c70424b358d581fd2de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a54e2fbb189c3dc05f9507ccdd6b43cb.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f76fa9d4288753bc5facbcd1bf79428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708973e41ee9739f6fc8cd64c8006e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600de07613f370932c6a630acb672913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3126dae63b1642eb3a14b95aaf2300aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc703200e5471d3a5a23a2c69574c430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda105ec292aac7ab1485bd5031783fb.png)
则正确命题序号为
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2 . 下列说法中,正确命题的序号是________ .
①若命题“
”为真命题,则
,
恰有一个为真命题;
②命题“
,
”的否定是“
,
”;
③设
,
为非零向量,则“
”是“
与
的夹角为锐角”的充要条件;
④命题“函数
仅有一个零点”的逆否命题是真命题.
①若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e48ebdd742cb5d310c21a384d599bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689c0ea661cce664e28a2f365715cbc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b145698b0107112cef031d8af566ec.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbc0945b4e1962e66f6f7e7f6af235d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
④命题“函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d730aeba9a7fe55d9bd8aaf2c165320.png)
您最近一年使用:0次
2022-03-10更新
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569次组卷
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3卷引用:陕西省渭南市2022届高三教学质量检测(一)理科数学试题