名校
解题方法
1 . 函数
是偶函数的充分必要条件是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd70ab537778fc2f56c3229392991b7c.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() ![]() |
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2 . “曲线
与圆
有且仅有三个公共点”的充要条件是_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159984b0f1191ee27fb8feca907ec5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbd2dd328f7c86bc0460a7e100e0fe7.png)
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3 . 已知集合
,集合
.
当
时,求
;
,不等式
恒成立,求实数a的取值范围;
若“
”是“
”的必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6e4672413c7be6c30edf784a863a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b354849f0fc1b0a0687877441a39de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f753c66e82980ba545b4ae340f45da4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4cfd6f114806a1ae4e5ef46f9685d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9795cfcb301e51b2f628ff95d7c85c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490a95247fc41d4a4e6b3b1b118d2a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b3e6e82a771b611bdece59ac0f3e3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429dc51dd8386027af2d9c6b0f351718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc4c15b1d62420f42732db3b626ce3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a3a95a978c23259caf993285d987b3.png)
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10-11高三·宁夏银川·阶段练习
名校
4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2610f13c3e564cec18350db61ed4d9.png)
(I)是否存在实数
,使
是
的充要条件,若存在,求出
的范围;若不存在,请说明理由;
(Ⅱ)是否存在实数
,使
是
的必要条件,若存在,求出
的范围;若不存在,请说明理由;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2610f13c3e564cec18350db61ed4d9.png)
(I)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(Ⅱ)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8647b00cc8c8f35555c7d78cf2812c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-03-03更新
|
717次组卷
|
7卷引用:北京101中学2016-2017学年下学期高二年级期中考试数学(文科)试题