名校
1 . 下列说法中不正确 的序号为_______ .
①若函数
在
上单调递减,则实数
的取值范围是
;
②函数
是偶函数,但不是奇函数;
③已知函数
的定义域为
,则函数
的定义域是
;
④若函数
在
上有最小值-4,(
,
为非零常数),则函数
在
上有最大值6.
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6203ce7c83077e5f6b4a71f5dca880c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf266ee97a956516cb6b144aad56686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8ab64ada60db3c9c0474ee5cee890c.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86b7611a3ad0113177b51d45a3cbf8e.png)
③已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68ba845cf4bbf832a990b97d5378fcaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74cb1a3df9a051174f9e180d6bcbb7b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad6bc8afe6f7a31a049e8d80e2b9d04.png)
④若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6071521f5c4049f1ea3d323ff7d2fd33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6f160a1be021b027bf59caa520d762d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/352252df126f03cab1ca7105809dd127.png)
您最近一年使用:0次
名校
解题方法
2 . 有下列命题:
①不等式
的解集为
;
②若
,函数
的最小值是2;
③对于
,
恒成立,则实数
的取值范围是
;
④已知
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7c299ac496c0fb85c77eacab348e22.png)
,若
是
的充分不必要条件,则实数
的取值范围是
.
其中真命题的序号为________________ .(把所有正确答案的序号填写在横线上,多选、错选不给分)
①不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d5d21732d8a22de752d615b46867f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796daaf8d1d5ebeab2d0d989dffe3716.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647e17f9be50dcaba45fa6b15d5d982a.png)
③对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b78b09b0bae2d4e347a8445393ac19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df8c8fd3bdee0551dd6048a131f9eeb7.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b964e01f15a297b8cc3cb564dea1cf01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7c299ac496c0fb85c77eacab348e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54209e68b27ab4c59f51aa1e6f3d6fd.png)
其中真命题的序号为
您最近一年使用:0次
解题方法
3 . 给出下列命题
(1)命题“
,
”的否定是“
,
”
(2)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b804002ee3d72ff947cfc8426f90047c.png)
(3)已知
,
,若
,则a的取值范围是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a568a870b0c247e1abaf4bf65b83865.png)
其中正确命题的序号为( )
(1)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9490565d4714ffcbadb26fdfca443856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9490565d4714ffcbadb26fdfca443856.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b804002ee3d72ff947cfc8426f90047c.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0820285d82c98efc92ee43db58418fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f4cde12869125b1eebc2c6c8ae22cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a568a870b0c247e1abaf4bf65b83865.png)
其中正确命题的序号为( )
A.(2)(3) | B.(2) | C.(1)(3) | D.(1)(2) |
您最近一年使用:0次
名校
解题方法
4 . 给出下列四个结论:
①命题“
,
”的否定是“
,
”;
②已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212381ec0dbd7f351b18b78f2398ab3a.png)
;
③若
,且
,则
;
④函数
的最小值为2.
其中正确结论序号为_________________ .
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b267be39f7c364531991c398a8e8fe7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd189f8e2572c0ba9d8a85a1d9bbe43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0c949ecf36cde66db2ab00146f9f7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0d6e7859fe1c7bb920ca8b31f19a59.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd27695cdeb63ceba5fefe9443110e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a2ccb66eb414aefc79d784eddf974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212381ec0dbd7f351b18b78f2398ab3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f86b86a6ccdf2c077d195db7bc380ea.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c38a21483a2dc328d2e0b1d1b62599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ea5d71ca3976bd564386b0607a26c6.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6155cbdc379b3d73414c7d76806fd6ff.png)
其中正确结论序号为
您最近一年使用:0次
名校
5 . 下列说法中:
①“若
,则
”的否命题是“若
,则
”;
②“
”是“
”的必要非充分条件;
③“
”是“
或
”的充分非必要条件;
④“
”是“
且
”的充要条件.
其中正确的序号为__________ .
①“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bad6987e8abfbf07d6a2650483d2a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bad6987e8abfbf07d6a2650483d2a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfcffd48bd96e513072d998b69b6629.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3056bd950bb55035358d45d1b7d354c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c925c4283740ce6cc412c1c5f57b0a.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80c89052d44692bfd1e37805035fb5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a871ef7bf13de3e15489d65b57a3cc.png)
其中正确的序号为
您最近一年使用:0次
名校
6 . 下列说法不正确的是________ .(只填序号)
①
是
的必要条件;
②
是
的充分不必要条件;
③
是
且
的充分条件;
④
是
的充分不必要条件.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d54e72f2a8f5bf4a12f3328503afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e9029d132adff5937610349c883287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16688590aa75a979cc269d934f1bf899.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0973815df3264c67f94eccde1c279ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200849ce71f53c0321506e27de437b8d.png)
您最近一年使用:0次
2023-08-28更新
|
473次组卷
|
3卷引用:人教A版(2019) 必修第一册 数学奇书 学业评价(六) 充分条件与必要条件
20-21高一上·全国·课后作业
名校
7 . 给出下列命题,
①存在
、
,使得
;
②任何实数都有算术平方根;
③某些四边形不存在外接圆;
④
、
,都有
.
其中正确命题的序号为_______ .
①存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddcf4daecd677a52d5f09849c18b63e4.png)
②任何实数都有算术平方根;
③某些四边形不存在外接圆;
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dad48527a47eab4a5916ab0421cc71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b437c89937a7cd619fa4498ae32e46b9.png)
其中正确命题的序号为
您最近一年使用:0次
8 . 下列四个命题:
①函数
是奇函数且在定义域上是单调递增函数;
②函数
有两个零点,则
;
③函数
,则
的解集为
;
④函数
的单调递减区间为
.
其中正确命题的序号为__________ .
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffa8ddcbbe89ab0f250f56673e2d36c.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f445485ca47631a2b2eaed41de8406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9977b59a789b7cfdd49185deb2b1b0d7.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120c5efbaa301be0271488d3994ae06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202fefd835bd75a1f618e250464cbb6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e311297ea5a2002666523d2497bd88.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f05bea1d22f23dbdefafa8e410a9001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2240415557f2c06b1ed3763e92f029.png)
其中正确命题的序号为
您最近一年使用:0次
名校
9 . 给出下列命题:
①已知任意两个向量
不共线,若
、
、
则
三点共线;
②已知向量
与
的夹角是钝角,则
的取值范围是
;
③设
,则函数
的最小值是
;
④设
,若
是平行四边形(
为原点),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79d6096988c7c3a4d67a6a6df8c458b.png)
其中正确命题的序号为__________ .
①已知任意两个向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d99cc203c3c8388b735ebc3570867dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23598ff4e07910f8e3be49cca7c3090f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275f765ce912f4346ddea732b8039da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8869ccfbe7b6fb673e52fdf2b94d7787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3470f8e8142a61cfd3d4aa1e1e203d2.png)
②已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15db03922a81fcab0af452cc48602aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a8f66ff0e80acc07dd594ee4bf05b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9065a68b9adf54456f20666022ed4b3.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6490990c5e2f4e821c7c52dd634bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd792ef880fd39d5f04eb1c9e81a4ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69496949dd4435108cab2f300d530dd.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8bc6f5b0c06b3cc40fd380230a5b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132de9682ce9a412b7b517aa209726ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79d6096988c7c3a4d67a6a6df8c458b.png)
其中正确命题的序号为
您最近一年使用:0次
名校
10 . 以下有关命题的说法错误的命题的序号是_______ .
①若命题p:某班所有男生都爱踢足球,则¬p:某班至少有一个男生爱踢足球;
②已知a,b是实数,那么“
”是
的必要不充分条件;
③若
则
;
④幂函数
在
时为减函数,则
.
①若命题p:某班所有男生都爱踢足球,则¬p:某班至少有一个男生爱踢足球;
②已知a,b是实数,那么“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f1b4d0a135ec14fcd5a0a2983bcebb.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c61cfbfd3bf888856b7dc9b2a84c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116a4f1c8b51d1993e6d7c054e2ed5d7.png)
④幂函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7a0f6ec661aa98997c444975990cdbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
您最近一年使用:0次