名校
解题方法
1 . 已知平面
平面
,直线
平面
,直线
平面
,
,在下列说法中,
①若
,则
;②若
,则
;③若
,则
.
正确结论的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa807136194c18d3ac58902c67f9333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983307d4345e724d9dd44935274843d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b02e0c74a66739bc83f73b5c5513cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40b707f5ee4fbb2e637c65fbc6d8ed03.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb26a220ed44c446105df7caa0f1063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb26a220ed44c446105df7caa0f1063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
正确结论的序号为( )
A.①②③ | B.①② | C.①③ | D.②③ |
您最近一年使用:0次
2020-03-07更新
|
395次组卷
|
3卷引用:江苏省苏州市2018-2019学年高一下学期期末数学试题
名校
2 . 下列结论:
“直线l与平面
平行”是“直线l在平面
外”的充分不必要条件;
若p:
,
,则
:
,
;
命题“设a,
,若
,则
或
”为真命题;
“
”是“函数
在
上单调递增”的充要条件.
其中所有正确结论的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876959b9f90f2379cf3d0927a8e31005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bded4e08a5c75fd82f1868c9f4c5b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3719d2ca3c5877bafc18f58c1fdf4b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4690a619a829c621fb7cd1e98df13f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdf492b48e5da4602f2bde199deae4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3bc9e7fe40882f2f79bcf8d87a7f031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67773252101fb3704fdac88b5f3f1bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bea9391c115618bb84a7aa3da8a242d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dbdf0c087ab6be44595a5ca285acbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd594e99f82b7736c44e18b2721e607f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10baec9d907f3ccb3f64ad3de53a589d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74269cfb503e736149e1ac3165fcbafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89e1ee3b8e2751f354aa5ab7135c75b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b3de9d6894829d7de515544cd6cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fe868d4152f599a9ae5a0dae150cb0.png)
其中所有正确结论的序号为
您最近一年使用:0次
2019-03-18更新
|
638次组卷
|
3卷引用:【市级联考】江苏省海门市2018-2019学年高二上学期期末联考数学(理)试题
3 . 已知空间两平面
,
和两直线
,
,则下列命题中正确命题的序号为__________ .
(1)
,
; (2)
,
;
(3)
,
; (4)
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f747152f006301e03b643afb80195c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2fc5040618ca0e9ebbfe642838521f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dedfa42c16dd0aefa2928a6e41f3dba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c763be9d20293e3c5ebde3b27e4588.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e867b50639ddf7995004fd57e11afb77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a63f6aa604e3d7fc7ae8c7b587069a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46cf68d01051d4968cb8407e6d87f941.png)
您最近一年使用:0次
4 . 对于样本相关系数r,下列说法不正确的是( )
A.样本相关系数r可以用来判断成对数据相关的正负性 |
B.样本相关系数![]() |
C.当![]() |
D.样本相关系数r越大,成对样本数据的线性相关程度也越强 |
您最近一年使用:0次
2022-07-01更新
|
447次组卷
|
2卷引用:江苏省无锡市普通高中2021-2022学年高二下学期期末数学试题
解题方法
5 . 已知
,
表示两条不同的直线,
,
表示两个不同的平面,则下列四个命题中,所有正确命题的序号为____ .
① 若
,
,则
; ② 若
,
,则
;
③ 若
,
,则
; ④ 若
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
① 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a042a14e1c3c915ad11544c9e1e57da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35f747152f006301e03b643afb80195c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a042a14e1c3c915ad11544c9e1e57da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f4ded3c4bc7a2212f2a0eb5f9753de5.png)
③ 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/808c6d37467a5c995d71e49408503927.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4042f9c51f83e3367d496e851735d7f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a042a14e1c3c915ad11544c9e1e57da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93a52c2b943e4c70ace99ed802d2b5.png)
您最近一年使用:0次
2010·江苏扬州·模拟预测
6 . 设
为使互不重合的平面,
是互不重合的直线,给出下列四个命题:
①![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69cebb5302cf2f97d48d88e9d90854b.png)
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c7e0f62160264d889cb0329bc45c1c.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc33394c7a5b0ee1fdb70766f6ed11fd.png)
④若
;
其中正确命题的序号为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69cebb5302cf2f97d48d88e9d90854b.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c7e0f62160264d889cb0329bc45c1c.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc33394c7a5b0ee1fdb70766f6ed11fd.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee1679158b5854fcd7ab68263f623a8.png)
其中正确命题的序号为
您最近一年使用:0次
11-12高三上·江苏泰州·期末
7 . 设
为互不重合的平面,
为互不重合的直线,给出下列四个命题:
①若
; ②若
∥
∥
,则
∥
;
③若
; ④若
.
其中正确命题的序号为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725be6759947d258592cd888c4db4561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5e5774d5b442de3e16992df33984dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a454eb406d21dc2367ad24fc88f2ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee1679158b5854fcd7ab68263f623a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c68b1bb92ca3e5a1cf5d32041db1c6.png)
其中正确命题的序号为
您最近一年使用:0次
8 . 下列命题中正确命题的序号为_______________ :
①函数
的单调减区间为
,k
;
②函数y=
图象的一个对称中心为
;
③函数
在区间
上的值域为
;
④函数
的图象可由函数
的图象向右平移
个单位得到;
⑤若方程
在区间
上有两个不同的实数解
,则
.
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113083fbf1400914c80b7b679fa63f14.png)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172167487488/1572172173254656/STEM/d4ef4890f14f4bafac43eee496ff991f.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172167487488/1572172173254656/STEM/342ab7b6168d4d93b3b586b7e37a3fd2.png?resizew=28)
②函数y=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a668cd2c81ba19a5a11dff29f1be85b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccceca659ab0c42fd51c8d1f3f717ee8.png)
③函数
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172167487488/1572172173254656/STEM/9bf0b21edf144ccbbda19f59bd5f5d4e.png?resizew=109)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ace4011964ee004dabab2f95246cd86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ba3b9ce15ff53257e782ae531e655e.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c65d71e57e6e7697e2f627dcd58583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ca9c2e84eabc66bb2b9e1aeee0ed3b.png)
![](https://img.xkw.com/dksih/QBM/2015/7/8/1572172167487488/1572172173254656/STEM/f673427437f742a7ae25a17eaff80ba2.png?resizew=17)
⑤若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84a39cdd054a65e2b90c6225587ffb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b77857e15ae11fc94a5e33bfc12d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6870d642d561c21030b94d414ebe9e7.png)
您最近一年使用:0次
2013·辽宁沈阳·一模
9 . 下面四个命题:
①把函数
的图象向右平移
个单位,得到
的图象;
②函数
的图象在x=1处的切线平行于直线y=x,则
是f(x)的单调递增区间;
③正方体的内切球与其外接球的表面积之比为1∶3;
④“a=2”是“直线ax+2y=0平行于直线x+y=1”的充分不必要条件.
其中所有正确命题的序号为_______ .
①把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a717eff37b12719ce3a2d1133a567059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c191fdfd08fb94ba6ed45c71f0fbeb.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b7ac6aa2ea754de988af76b40c7c3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/418e13befb3ed159facdbd5aaa9bc49c.png)
③正方体的内切球与其外接球的表面积之比为1∶3;
④“a=2”是“直线ax+2y=0平行于直线x+y=1”的充分不必要条件.
其中所有正确命题的序号为
您最近一年使用:0次
名校
解题方法
10 . 一个袋子中装有大小和质地相同的4个球,其中有2个红球(标号为1和2),2个白球(标号为3和4),甲、乙两人先后从袋中不放回地各摸出1个球.设“甲摸到红球”为事件
,“乙摸到红球”为事件
.
(1)小明同学认为:由于甲先摸球,所以事件
发生的可能性大于
发生的可能性.小明的判断是否正确,请说明理由;
(2)判断事件
与
是否相互独立,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
(1)小明同学认为:由于甲先摸球,所以事件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
(2)判断事件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f20f21a9d50b61dac519a3ddab539d.png)
您最近一年使用:0次
2023-06-29更新
|
577次组卷
|
5卷引用:江苏省泰州市2022-2023学年高一下学期期末数学试题