名校
1 . 已知函数
,
,若
,且
,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2399c2a712a2890dcd0b195d3b9f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a5318249b7436089c0373fc6f38adf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57a1e4940da0a2c64abd3e01282db084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e3c99ca3d73d87d3fdbef88c859dd6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6442eb5bf7e2436747b9d7c7ea65b9.png)
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解题方法
2 . 已知双曲线
:
(
,
)的左顶点为
,右焦点为
,离心率
,点
到渐近线的距离为
.
(1)求双曲线
的方程;
(2)设
是双曲线
上任意一点,且
在第一象限,直线
与
的倾斜角分别为
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0276541c12707b24d2f06ea3d976cf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943b765718479c160ba61ec5c6f8c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/627ee09d3f1877bab045061060559cb0.png)
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3 . 给出定义:对于函数
,则称向量
为函数
的特征向量,同时称函数
为向量
的特征函数.
(1)设向量
分别为函数
与函数
的特征向量,求
;
(2)设向量
的特征函数为
,且
,
,求
的值;
(3)已知
分别为
三个内角
的对边,
,设函数
的特征向量为
,且
,
分别是边
的中点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/651055fdc939ef20d1e92e82e6b32f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33309290491d336f5a69dd4308223cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33309290491d336f5a69dd4308223cc8.png)
(1)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02bd32ab64d9c9cdf154e86e5eb59c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89deb3ed56b145b87f4711a49b8ab094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc66d7d60e63dced6a4538c60d09b5c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1e54da5895696a5505e9322cfede9b.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1353a012fe272dffbfac0bd9d9bd7b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78eab267923d207c5518adb9053b069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b09e347dae4283fa86f65569a576276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f823fe57e96d1a820acadede21940c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aeae90a042dc659a868a8997f1a0736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e257e6c38a24ced4f9423f7f51b0e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/622e4b02aae76d54b295df9890c1d2a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295f5a1e09ac16dbedad157b16ca2ba8.png)
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解题方法
4 . 满足下列条件的四面体存在的是( )
A.1条棱长为![]() | B.1条棱长为1,其余5条棱长均为![]() |
C.2条棱长为![]() | D.2条棱长为1,其余4条棱长均为![]() |
您最近一年使用:0次
2024-06-13更新
|
365次组卷
|
2卷引用:福建省厦门第一中学2023-2024学年高一下学期6月适应性练习数学试卷
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解题方法
5 . 在
中,
,
为
边上的中线,点
在
边上,设
.
(1)当
时,求
的值;
(2)若
为
的角平分线,且点
也在
边上,求
的值;
(3)在(2)的条件下,若
,求
为何值时,
最短?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8520a21b909d04f763d0f61dd74bc158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a775cd2e88d786d495ae2cb262a2b0f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9680bd6f250acb8b568510419b59d3e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f4f8e27f307a8a998a3335ba7d1bb4.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441b642fc2d954a5117710a053a21a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2024-06-13更新
|
432次组卷
|
2卷引用:福建省厦门市双十中学2023-2024学年高一下学期第二次月考数学试卷
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解题方法
6 . 在圆锥
中,C是母线
上靠近点S的三等分点,
,底面圆的半径为r,圆锥
的侧面积为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a6e2867f32d3f1c3cd36cd3a11a8580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ddaa2c8b030ac1dd8029a2413b166c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e5ef91fb27dd684a27ae7f1993cfba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb9c018281fcaaf52863e1f83d9dad0.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() ![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
2024-06-13更新
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2卷引用:福建省安溪第一中学2023-2024学年高一下学期5月份质量检测数学试题
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解题方法
7 . 已知
为方程
的根,
为方程
的根,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb0bd07a0eec6d37efe8f2e310b5420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06143cdf12d19aa34f0a1e60feeb787.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-06-13更新
|
292次组卷
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3卷引用:福建省泉州市安溪第一中学2023-2024学年高二下学期5月份质量检测数学试题
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解题方法
8 . 已知椭圆
的离心率为
,A,B,C分别为椭圆的左顶点,上顶点和右顶点,
为左焦点,且
的面积为
.若P是椭圆M上不与顶点重合的动点,直线AB与直线CP交于点Q,直线BP交x轴于点N.
(1)求椭圆M的标准方程;
(2)求证:
为定值,并求出此定值(其中
、
分别为直线QN和直线QC的斜率).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cf6cca367ce2afd96d7d951f9587e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆M的标准方程;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21577004a2cd71f8001fb4639d39b0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827fa7cf443d9be9b56226d50fafd53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32117168271970dcfa7595338a3c662f.png)
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9 . 双曲线
的左右焦点分别为
,
,过
的直线与双曲线C的左、右两支分别交于M、N两点.若
且
,则双曲线的离心率为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14503fb4f0ee53847732c298c13db666.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b89f666bb428c404469736e9528297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8438b536ba7d376f22aec5d20e66017f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知函数
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
(1)求
的最大值
(2)写出
与
的大小关系,并给出证明
(3)试问
能否作为
三边长?若能,给出证明,并探究
的外接圆的半径是否为定值?若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1044dcf4fba551e1b7fbfeb895ea08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b692262286e03cc0536598789fab8699.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fd5c1ef0fc722337a4984834829c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7bb46b41cd3f1f9b5621c20bf7fe07.png)
(3)试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b799aaa36edd0d10fc38925ce2e55045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-06-12更新
|
160次组卷
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2卷引用:福建省泉州市安溪第八中学2023-2024学年高一下学期6月份质量检测数学试题