1 . 已知
,
,则
是
的________ .(选“充分不必要条件”“必要不充分条件”“充要条件”“即不充分也不必要条件”之一填空)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb6f0dd3b354854301ec1f7a774e7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8126a2f072a21d5bbf8ea0a3946abde3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2 . 已知函数
,则“
”是“
有零点”的__________ (填入“充要”“充分不必要”“必要不充分”“既不充分也不必要”中的一个)条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f81206b19a0cf30feb8928e8c656cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
3 . 下列四个命题,真命题的个数是________ .
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63af71b9e6f71cd26e6e97541154cd8c.png)
②
的充分不必要条件是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
③命题“
,
”的否定为“
,
”
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63af71b9e6f71cd26e6e97541154cd8c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b9d08cf536bbb76bce1b0f135772.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
③命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/899301a636c6ca1b072877441bcbcc59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3119d53efb32cd36255815c962be6ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2a51de282f71171aeb8284c4a9cb1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f9fdc01e564d4c2e5f7d3c8d0f3db3.png)
您最近一年使用:0次
名校
4 . 已知P:
,Q:
表示椭圆,则P是Q的______ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cd410af83a4e172bd6b2847f2c3480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2346e88e70029b80556aec2d843f6db0.png)
您最近一年使用:0次
名校
5 . 已知非零实数
,则“
”是“
”的______ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/275dc023f898675ef5f4154064607a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf715ddebefad03cfe471613b5757440.png)
您最近一年使用:0次
名校
解题方法
6 . “
”是“
”的________ 条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8aec2aa4c5bbf238b0ce24be6e63db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
您最近一年使用:0次
7 . 已知
,则“
”是“
”的_____ 条件.(选填:“充分非必要”,“必要非充分”,“充要”,“非充分非必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcd794fcb4f4d9b0849de1f54704490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c485aa0f953783d1c1399283aab4a2.png)
您最近一年使用:0次
名校
8 . “
”是“
”的______ 条件.(填“充分不必要”、“必要不充分”、“充要”或“既不充分也不必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c1fc049a87888752174ddea4187c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f68488734f712fa7948b120ac23251a.png)
您最近一年使用:0次
9 . 已知
表示两个不同的平面,
为平面
内的一条直线,则“
”是“
”的________ 条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474929dd8e89d9ce37448ae72b48d04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
您最近一年使用:0次
名校
解题方法
10 . 下列说法正确的是_____________________
①若
,则
的值为1;
②已知
,则
的最小值为9;
③设
,则“
”是“
”的充分而不必要条件.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88452aa51ff69fbcbb2632d2ed3a2cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7266b2ef457b8ddeee3fa2cc24022e.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ffcf239966d57ccaf5af7089bcb01e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac42025e439a68768819900999631ed3.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f8675be2bff3a93388dad29f6a17fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0153f1f52c440bb25e9d644bf39f57e.png)
您最近一年使用:0次