1 . 已知抛物线C:
的焦点为F,过点F的直线l交抛物线C于A、B两点,且
,
(O为坐标原点),则抛物线C的方程为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b34061bab79590585e525c0912d8c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce50eb3d71e81613c4dac1e8ecae6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6b06b01d1bc1cf1b0c1f23e8529cdd.png)
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2 . 双曲线E:
(
,
)的左、右焦点分别为
,
,已知点
为抛物线C:
的焦点,且到双曲线E的一条渐近线的距离为
,又点P为双曲线E上一点,满足
.则:
(1)双曲线的标准方程为______ ;
(2)
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48f220f8fc1cb2c4e8ceffec9e2015a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
(1)双曲线的标准方程为
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
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3 . 已知椭圆
,点
为椭圆
的左顶点,若点
在椭圆
上,点
为椭圆上任意一点,则
面积的最大值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a304696b261e993dcaa4038627ac9bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
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4 . 双曲线
的一条渐近线方程为
,则该双曲线的离心率为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86bebdf5931efbdc627baa52f97392e.png)
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5 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273b826ce1de356d5040ec7899944bb0.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/273b826ce1de356d5040ec7899944bb0.png)
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6 . 已知函数
满足
,
,且
在区间
单调,则
的取值个数为________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59d0eba844117978d3c936b4d3801ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e22f053ee8d4d2faa8b682620ba28da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b89a76d6d30317f2cfa05b66595bab90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6361a238a328fd64541c4a7282a4636e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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7 . 不过原点的直线
与抛物线
交于不同两点
,
,若
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ea7bfe354688a53abe148c7ef89535d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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8 . 图1为一种卫星接收天线,其曲面与轴截面的交线为抛物线的一部分,已知该卫星接收天线的口径
,深度
,信号处理中心
位于焦点处,以顶点
为坐标原点,建立如图2所示的平面直角坐标系
,若
是该抛物线上一点,点
,则
的最小值___________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/7e13ae79-7bbf-47d6-be8b-1176231cfeeb.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cedd51383f8f047f565191b128cec637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c269e9e955aaadce389940e9a8f15c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79318e205294b5d141e72bef0a75f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b54e0cbb247580178aed5cecadd25c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/7e13ae79-7bbf-47d6-be8b-1176231cfeeb.png?resizew=134)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/9/20f73eac-bbc1-448e-9d2b-4098d2d04e00.png?resizew=137)
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2024-01-22更新
|
80次组卷
|
2卷引用:宁夏回族自治区银川一中2023-2024学年高二上学期期末考试数学试题
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9 . 数列
中的前n项和
,数列
的前n项和为
,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b44f1584bac756c6b542271bb7c404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3e6ff7cf0e15a8bfa8d5ea23a6d153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f710b0e6ccca316852bf3a94f68135.png)
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10 . 函数
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e69c6f13ee1842b03387dc42d717a58.png)
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