名校
解题方法
1 . 唐代诗人李颀的诗《古从军行》开头两句说:“白日登山望烽火,黄昏饮马傍交河.”在这首诗中含着一个有趣的数学问题——“将军饮马”问题.如果在平面直角坐标系中,军营所在区域的边界为
,河岸所在直线方程为
,将军从点
处出发,先到河边饮马,然后再返回军营,如果将军只要到达军营所在区域即回到军营,则将军所经过的最短路程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c960fc862fd36db83082f5c50cd604b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
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114次组卷
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2 . 如图所示,椭圆
的左焦点为F,A、B两点在椭圆上,且四边形
为菱形,则该椭圆的离心率为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/10b1bddf-590c-49cf-ba23-ab5919ece3a7.png?resizew=184)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47c92a2714ebd92248c3e200797abe17.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/10b1bddf-590c-49cf-ba23-ab5919ece3a7.png?resizew=184)
A.![]() | B.![]() | C.![]() | D.![]() |
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246次组卷
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2卷引用:河北新乐市第一中学等2023-2024学年高二上学期期末联考数学试卷
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3 . 在如图所示的直四棱柱
中,底面
是正方形,
是
的中点,点N是棱
上的一个动点,则点
到平面
的距离的最小值为( )
![](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/3aa76305e57888722e2f522e293b1c3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/4e3ecaed-9f9d-44c2-95d7-fc84de7d2f2e.png?resizew=134)
A.1 | B.![]() | C.![]() | D.![]() |
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4 . 已知等差数列
的公差
,
,
,记该数列的前n项和为
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8bbb4a09e0ac86bbae46222a90841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9c0e0f3f5a691681971f5ebdf4a680.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232faf3b3aa63b4708168a3883dc2ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.20 | B.24 | C.36 | D.40 |
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11卷引用:河北新乐市第一中学等2023-2024学年高二上学期期末联考数学试卷
河北新乐市第一中学等2023-2024学年高二上学期期末联考数学试卷河北省石家庄市赵县七县联考2023-2024学年高二上学期期末数学试题湖南省永州市部分学校2023-2024学年高二下学期6月质量检测卷数学试题河南省周口市西华县第一高级中学等校2023-2024学年高二上学期一月联考数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(七)(已下线)专题04 数列(1)(已下线)第五章:数列章末重点题型复习(1)黑龙江省大兴安岭实验中学(东校区)2023-2024学年高二下学期期初考试数学试题四川省成都市第四十九中学校2023-2024学年高二下学期3月月考数学试题(已下线)4.2.2 等差数列的前n项和公式——课后作业(巩固版)黑龙江省实验中学2023-2024学年高二下学期4月考数学试题
解题方法
5 . 如图,在四棱锥
中,
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1161758169879ed54adbe0f34d15a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,
在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
平面
,设
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/e89883a2-2687-4775-905b-706cffb79db6.png?resizew=197)
(1)求
;
(2)若点
到平面
的距离为1,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1161758169879ed54adbe0f34d15a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b31b813e5517ba13a758307e5f719c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46e2da608b66c9aee03e2503388ba4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1680b89dc09b61b03267d262620b4c4e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/e89883a2-2687-4775-905b-706cffb79db6.png?resizew=197)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
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6 . 平面直角坐标系中,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b5a2ac5c76c70dcb9f538e94e8f824.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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7 . 已知点
在圆
上运动,
,点
为线段MN中点.
(1)求点
的轨迹方程;
(2)已知
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91cf6269bb8bfdb9bb4bc7cf8f03497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2988ce1f3f4a5869dfc13e53f54f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622fd5a0ff2063d6d93b2ac78ef1e64f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed9a3976b506be220a26873931651b2.png)
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8 . 若数列
为等比数列,则以
为焦点的抛物线标准方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a8f1004c3852fc32d91de3d0cc7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1f08e04cf0b6a9afea66ce590ba00b.png)
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9 . 已知双曲线
,直线
与C交于A,B两点,点P是C上异于A,B的一点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c4ed5a210e7f97bf194e37fd38ad8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3016baf1a9ce777f16ea9ce469b2510.png)
A.C的焦点到其渐近线的距离为![]() |
B.直线![]() ![]() |
C.过C的一个焦点作弦长为4的直线只有1条 |
D.点P到两条渐近线的距离之积为![]() |
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解题方法
10 . 已知正项数列
的前项积为
,且满足
.
(1)求证:数列
为等比数列,并求
;
(2)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ea55195eba6040a83fc43a23d95eb2.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0e7f1421d306e84f98d00b7c8652647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb3766d5160d460a00a15c0bd4d94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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