解题方法
1 . 如图.已知平行六面体
的底面是菱形,
,
.
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4660d993eda4d53b99bbe06a20344462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920a7dec798f1fd44f5830504ab5bdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02a0e00113872f921116b6c0c3177d0f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239198e40085b7dcffbe747c9c265a05.png)
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2 . 已知F是椭圆
的右焦点,A为椭圆
的上顶点,双曲线
与椭圆
共焦点,若直线
与双曲线
的一条渐近线平行,
,
的离心率分别为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbc7f10e9380ae9db24047fca6720.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d101bd6b9e4d8bda938e85d2ddce2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994a876391534efe497dc115a53e3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbc7f10e9380ae9db24047fca6720.png)
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解题方法
3 . 已知A,B分别是椭圆
的左、右顶点,R为椭圆C上异于A,B的一点,且满足
.
(1)求椭圆C的标准方程;
(2)已知点
,过点
的直线交椭圆C于D,E两点,直线
,
分别交直线
于
两点,探究
是否为定值,若为定值,求出该定值;若不为定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d5b538dbc0d6d7aca647794be954b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27117e63de9412bd33ac53f6a1971d3d.png)
(1)求椭圆C的标准方程;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c699a757a7ee06c063150def9c5dffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef9d0784478511736255074b9395fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f30cb81835298cb612a828f355060a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/748e0ea9f0f974ea69fef4d04a0933d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e74181b941bc0f0cae3cc6a91309ce3.png)
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名校
解题方法
4 . 已知平面
的一个法向量为
,点
是平面
上的一点,则点
到平面
的距离为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656e12e7079be3aa6d31ed2d89cca775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c93a2eba1d970ee13e30f5bb25efa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39627ce8b3371dc9a6d50d25390c6155.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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|
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9卷引用:贵州省都匀市民族中学2023-2024学年高二上学期期中考试数学试题
贵州省都匀市民族中学2023-2024学年高二上学期期中考试数学试题湖南省株洲市第八中学2021-2022学年高二上学期期中数学试题内蒙古乌兰浩特市第四中学2023-2024学年高二上学期期中考试数学试题山西省朔州市平鲁区李林中学2022-2023学年高二上学期第一次月考数学试题湖南省天壹名校联盟2022-2023学年高二下学期入学摸底数学试题(已下线)北京市第五十五中学2023-2024学年高二上学期期末模拟数学试题青海省格尔木市第七中学2023-2024学年高二下学期期末考试数学试题青海省海东市第一中学2023-2024学年高二上学期第一次月考数学试题甘肃省武威市2023-2024学年高二下学期6月月考数学试题
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5 . 如图,在长方体
中,
,
,
.
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41d364b55d88688cd1f571ed231228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d934cc20f381844799378b12cd15afdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca307917add31c3aa66f228b5aad1ae.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15dc61d5de97b5a40be925b278ae494c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64eb66e4fa5ca4231b8ce2490eeb192b.png)
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名校
解题方法
6 . 已知双曲线
的离心率为
,虚轴长为
.
(1)求双曲线C的方程;
(2)若动直线l与双曲线C恰有1个公共点,且分别与双曲线C的两条渐近线交于P,Q两点,O为坐标原点,证明:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc2e6884bdcb0c1ae466765e291cc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047616f1d1d39bf6c3cd07cf63ef5b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求双曲线C的方程;
(2)若动直线l与双曲线C恰有1个公共点,且分别与双曲线C的两条渐近线交于P,Q两点,O为坐标原点,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
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贵州省遵义市2023-2024学年高二下学期5月期中联考数学试题(已下线)宁夏回族自治区银川一中2024届高三下学期第四次模拟考试数学(理)试卷(已下线)宁夏回族自治区银川一中2024届高三下学期第四次模拟数学(文)试卷宁夏回族自治区银川一中2024届高三下学期第四次模拟考试数学(文)试卷
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解题方法
7 . 已知椭圆
,直线
(其中
)与椭圆
相交于
两点,
为
的中点,
为坐标原点,
.
(1)求
的值;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9bf37fb661ccc2fdd67407269708df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/688075bdcbd17d782a5a8ddb9e1dc856.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
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8 . 如图,在直三棱柱
中,
,
,
,
,点
是棱
的中点.
平面
;
(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/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c122ca7141c43c15c783968f5f0dbc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cb62f4c1e0e023619922eb8a509c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62fd0b510920be6bc60d170c3ff3da3.png)
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2024-06-10更新
|
275次组卷
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2卷引用:贵州省都匀市民族中学2023-2024学年高二上学期期中考试数学试题
名校
解题方法
9 . 已知圆:
的圆心为椭圆
的右焦点
,且椭圆
的离心率为
.
(1)求椭圆
的标准方程;
(2)过点
且不与
轴重合的直线
交椭圆
于
两点,
为
的中点,
为坐标原点,分别过
作椭圆
的切线,两切线相交于点
.
(i)求证:
三点共线;
(ii)当
不与
轴垂直时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca2415dee662897b676734cfc768d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](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/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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3421e6965c86b4cca2a503385b3cc156.png)
(ii)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd5a5c9bf064e96f6c77cdd2b2951d8.png)
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10 . 如图,在三棱柱
中,底面
是边长为6的正三角形,
是
的重心,
.
平面
;
(2)求二面角
的正弦值.
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3facd37ba2430c0be0d8a8bc063133a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ad2917b716db41c03e670f77d411d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa84da7ead562cffd02afd5940f8aa3.png)
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