名校
解题方法
1 . 已知定义在
上的偶函数
,当
时,
,函数
在
上的极值点个数为
;幂函数
中实数
的值等于
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e2b0358ea928782fba64590bdd5887.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4951269b582975c1b2d2aedc8285030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10117ea6e806747a8ac2953dfa0f18a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e2b0358ea928782fba64590bdd5887.png)
您最近一年使用:0次
名校
2 . 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
3 . 下列四个命题:
①复数
在复平面中对应的点在第二象限
②已知幂函数
为偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba24ca9648a13438daa6da7a10073163.png)
③若函数
定义域为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9105339cc1da9c8e712a0afc4747515e.png)
④
,
恒成立
其中真命题的序号是______ .(把真命题的序号都填上)
①复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac81f6bc59de6ce74ee249bcbbe29dd.png)
②已知幂函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb7ed9690c65a9fbfe0441af5f0b26e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba24ca9648a13438daa6da7a10073163.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04baf30346c2980f1c9627e1f86f60b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9105339cc1da9c8e712a0afc4747515e.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e57d1396a1ed81be204e6e1863d0c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80fcb77b3bdf39c6c3b6081c8663a6aa.png)
其中真命题的序号是
您最近一年使用:0次