解题方法
1 . 已知抛物线
的准线
,直线
与抛物线
交于
,
两点,
为线段
的中点,则下列说法中正确的为_________________ .(填写所有正确说法的序号)
①若
,则以
为直径的圆与
相交;
②若
,则
(
为坐标原点);
③过点
,
分别作抛物线
的切线
,
,若
,
交于点
,则
;
④若
,则点
到直线
的距离大于等于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8603a175d1a7685208f64d4a4e8521ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48054662c2d9b0dca46f5ae482cef509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e28cb80a0d7ea39bc8f3b6b90fac5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36445a8b9102f748e24aeca52838ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4244af644b011d8292c8533368a9c9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
③过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/904b21bba351171abdc8482a906499d8.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753c43eb11c1f1e92ff392d3a989b95b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6503ca085e3ca5f2ba723b0dd66e210b.png)
您最近一年使用:0次
解题方法
2 . 如图,在正方体
中,点
在线段
上运动,有下列判断:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/2b393892-616b-4b18-948c-e236b1db6cc0.png?resizew=170)
①平面
平面
;
②
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
③异面直线
与
所成角的取值范围是
;
④三棱锥
的体积不变.
其中,正确的是__________ (把所有正确判断的序号都填上).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/20/2b393892-616b-4b18-948c-e236b1db6cc0.png?resizew=170)
①平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc954f644ebd405a780856f8c02cfe66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c823e54bf3a3a7f1916a4886eb6279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
③异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05301d54b4ab7e88e9382bfe23ccea75.png)
④三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23e623d7180e345393af2fcde4e9c2b.png)
其中,正确的是
您最近一年使用:0次
名校
3 . 下列说法中,所有正确说法的序号是______ .
①终边落在y轴上的角的集合是
;
②函数
图象的一个对称中心是
;
③函数y=tanx在第一象限是增函数;
④已知
,f(x)的值域为
,则a=b=1.
①终边落在y轴上的角的集合是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e7e8682ba79b15306f55c628e41ed3.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ce622c391bea1cbe2dfb1f0c13618b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5717a16aa38dc3a7c44d784fbb68a535.png)
③函数y=tanx在第一象限是增函数;
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6beb2b7d217aba8949ed8994d4d407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1ffbc9268ca8eaf0b53657c548880b.png)
您最近一年使用:0次
2017-07-21更新
|
638次组卷
|
3卷引用:陕西省咸阳市实验中学2020-2021学年高一下学期第一次月考理科数学试题