名校
解题方法
1 . “
”是“
是第一象限角”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb6e94acb09a3d0e51aab9df90ad1b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2 . 如图,在三棱台
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/3710d003-fb29-471a-af5c-43b24f3de348.png?resizew=181)
(1)证明:
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c20287386583c8ee11b44b1af0de5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2106309ce73b6cfc480fe0389c1c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354c20e085fe1a99a8be03bd1d16b2f3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/3710d003-fb29-471a-af5c-43b24f3de348.png?resizew=181)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e8e94ba1dfb62069fb125be98d2498a.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
您最近一年使用:0次
2024-03-17更新
|
1861次组卷
|
6卷引用:内蒙古赤峰第四中桥北学分校2024届高三下学期开学摸底联考数学(理)试题
3 . 已知椭圆
的右焦点为
,设直线
:
与
轴的交点为
,过点
且斜率为
的直线
与椭圆交于
、
两点,
为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/0b5cb170-5991-46e2-9f57-b0691c4732cd.png?resizew=194)
(1)若
,求直线
的倾斜角;
(2)设直线
交直线
于点
.
①求直线
的斜率;
②求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82766cfd2b7c59c7fac5b827ae5863b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da322ac8867e8a47c6588601078abf18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/0b5cb170-5991-46e2-9f57-b0691c4732cd.png?resizew=194)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f76cc09dfa324e07f7bb5919eeaba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
①求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38f3fb2aa72365b99509f623c3f31aa.png)
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名校
解题方法
4 . 过抛物线
的焦点
作直线
,与
交于
两点(点
在
轴上方),与
轴正半轴交于点
,点
是
上不同于
的点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5747e91c63a28c1847a127e9888d1880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
A.1 | B.2 | C.3 | D.4 |
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5 . 如图,设
为
所在平面外任意一点,
为
的中点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc840e197de2dabff676ee1b8968fada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be8c9a4f4f4a64ba852a1346c10113ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/5c8fb242-2ca6-45f2-af26-ac1937778622.png?resizew=142)
您最近一年使用:0次
解题方法
6 . 若对于
,都有
,则
的值可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dbee7e8c6a58a4f5e726d48a272685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
名校
7 . 求满足下列条件的曲线方程:
(1)一个焦点坐标为
,渐近线方程为
的双曲线;
(2)顶点在坐标原点,焦点
在
轴正半轴上,过点
且满足
的抛物线.
(1)一个焦点坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c76c41773aae617db1c0cc04bcf836f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e229870f126b31e37965bc0c58667.png)
(2)顶点在坐标原点,焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77de0c66563dcde1e213f77ed3f71b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e899f8b919e2104b26cddb012a8460.png)
您最近一年使用:0次
名校
8 . 如图,已知梯形
与
所在平面垂直,
,
,
,
,
,
,
,连接
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/8bbbf02d-111d-4c33-a550-ada823242705.png?resizew=155)
(1)若
为
边上一点,
,求证:
平面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1c122603b60b6f1a1334ddb56c3fb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb52f9b226b1db3f6f9f055948bd38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c250ece82bf79a8b99af177f7548c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09676c143a6ce7bc17ac106a16437e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291429b0d1f38a5a0b76af7451120d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7d2a2da5144f0bf6ce091c56b3d5a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/8/8bbbf02d-111d-4c33-a550-ada823242705.png?resizew=155)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e6acc3f368fa36ad9ca5cf09f1998d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8badfeb9e7556486e02ab60df4dd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09d9d486b7f91ba933210dd013a7f2c.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c6e025c4876a06fc3a82ae5d476779.png)
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解题方法
9 . 如图,在四棱台
中,底面
是菱形,
,
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/49b2e079-2571-4fa3-88b5-eb6c650030ee.png?resizew=164)
(1)求三棱锥
的体积;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8115c7ad0f0fda71c1b986ebc677bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d7e19a17928e09a22b79e84f5f14de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/16/49b2e079-2571-4fa3-88b5-eb6c650030ee.png?resizew=164)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07cfcd1c81b27ad23408261c64528c80.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da7977ab975efa6411cc17de39be70d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
您最近一年使用:0次
10 . “工艺折纸”是一种把纸张折成各种不同形状物品的艺术活动,在我国源远流长.某些折纸活动蕴含丰富的数学内容,例如:用一张圆形纸片,按如下步骤折纸(如图).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/90427c07-5298-4cbd-ba64-d5520a07d701.png?resizew=262)
步骤1:设圆心为E,在圆内异于圆心处取一点,标记为F;
步骤2:把纸片折叠,使圆周正好通过点F;
步骤3:把纸片展开,并留下一道折痕;
步骤4:不停重复步骤2和3,就能得到越来越多的折痕.
已知这些折痕所围成的图形是一个椭圆.若取半径为6的圆形纸片,设定点F到圆心E的距离为4,按上述方法折纸.
(1)以点F、E所在的直线为x轴,建立适当的坐标系,求折痕围成的椭圆C的标准方程;
(2)若过点
且不与y轴垂直的直线l与椭圆C交于M,N两点,在x轴的正半轴上是否存在定点
,使得直线TM,TN的斜率之积为定值?若存在,求出该定点和定值;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/15/90427c07-5298-4cbd-ba64-d5520a07d701.png?resizew=262)
步骤1:设圆心为E,在圆内异于圆心处取一点,标记为F;
步骤2:把纸片折叠,使圆周正好通过点F;
步骤3:把纸片展开,并留下一道折痕;
步骤4:不停重复步骤2和3,就能得到越来越多的折痕.
已知这些折痕所围成的图形是一个椭圆.若取半径为6的圆形纸片,设定点F到圆心E的距离为4,按上述方法折纸.
(1)以点F、E所在的直线为x轴,建立适当的坐标系,求折痕围成的椭圆C的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104858bd2e55876487eade49e84d62c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb2818cd5000adaa66af6a2e09a6fcf.png)
您最近一年使用:0次