1 . 如图所示,在直三棱柱
中,底面
是等腰直角三角形,
,点
为侧棱
上的动点,
为线段
中点.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c330e73dbbf9e2c0f2fb755461e3c898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
A.存在点![]() ![]() ![]() |
B.![]() ![]() |
C.三棱锥![]() ![]() |
D.平面![]() ![]() ![]() |
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解题方法
2 . 已知正方体
棱长为2,点
在线段
上运动,则( )
![](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/d7f6f93171329d508d491143b9d71f7b.png)
A.直线![]() ![]() ![]() |
B.三棱锥![]() ![]() |
C.![]() |
D.![]() ![]() |
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3 . 已知
是双曲线
的右焦点,
为其左支上一点,点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad0c75ce33673ec4c425896e8619e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ddf4aac820c83365b1e731aacf4564.png)
A.双曲线的焦距为6 |
B.点![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
4 . 如图,已知正方体
的棱长为1,P为底面ABCD内(包括边界)的动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.存在点P,使![]() ![]() |
B.三棱锥![]() |
C.若![]() ![]() |
D.若点P是AD的中点,点Q是![]() ![]() ![]() ![]() ![]() ![]() |
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7日内更新
|
271次组卷
|
2卷引用:浙江省浙江山海共富联盟2023-2024学年高一下学期6月联考数学试题
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解题方法
5 . 已知正方体
的棱长为2,点
为平面
内一动点,则下列说法正确的是( )
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若点![]() ![]() ![]() ![]() |
B.若点![]() ![]() ![]() ![]() |
C.若点![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() |
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6 . 如图,平面直角坐标系上的一条动直线l和x,y轴的非负半轴交于A,B两点,若
恒成立,则l始终和曲线C:
相切,关于曲线C的说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1773f4f16fc6a3568c3b9943cb5a4465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b002dd15089cfa7bc92316391f4a05.png)
A.曲线C关于直线![]() ![]() |
B.曲线C上的点到![]() ![]() |
C.曲线C上任意一点到原点距离的取值范围是![]() |
D.曲线C和坐标轴围成的曲边三角形面积小于![]() |
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2024-06-11更新
|
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|
3卷引用:浙江省(杭州二中、绍兴一中、温州中学、金华一中、衢州二中)五校联考2024届高考数学模拟卷
名校
解题方法
7 . 在平面直角坐标系
中,椭圆
,圆
,
为圆
上任意一点,
为椭圆
上任意一点.过
作椭圆
的两条切线
,
,当
,
与坐标轴不垂直时,记两切线斜率分别为
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f62686f6f9118291c444a8d5a4d0f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
A.椭圆![]() ![]() | B.![]() |
C.![]() ![]() | D.![]() |
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2024-06-10更新
|
1198次组卷
|
2卷引用:浙江省杭州市西湖高级中学2024届高三下学期数学模拟预测数学试题
名校
8 . 设m,n是两条不同的直线,
,
是两个不同的平面,下列命题中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.若![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-06-08更新
|
1714次组卷
|
4卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
解题方法
9 . 已知正方体
的棱长为1,点
满足
,其中
,
,则( )
![](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/b2b1e5828ba34bfa9c839182baf52509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e87088da41685cc8d433fbbe0e18d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6612afffccf731637a818d5732e5ba.png)
A.当![]() ![]() ![]() |
B.过点![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
10 . 已知直线
过抛物线
的焦点,且与该抛物线交于
,
两点.若线段
的长是20,
中点到
轴的距离是8,
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3216eaf304ac663dde585aba0af04a8.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.抛物线![]() ![]() | B.抛物线![]() ![]() |
C.直线![]() ![]() | D.![]() ![]() |
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