名校
解题方法
1 . 在三角形
中,内角
对应边分别为
且
.
的大小;
(2)如图所示,
为
外一点,
,
,
,
,求
及
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509bf554c7f4a0e97d09a7a9059e3462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
(2)如图所示,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e5357c1d8b14eb70ee029d2634db9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18120a244d3a1f9c1688bf53eb2ad775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fcc9a4a6d0ad203358b16760fadc2d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0631374bf6479204a48d384b30bab46a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-06-07更新
|
1684次组卷
|
3卷引用:浙江省绍兴市上虞区2023-2024学年高三下学期适应性教学质量调测数学试卷
名校
解题方法
2 . 五一假期后,高二年级篮球赛进入白热化阶段,甲、乙、丙三支种子队在进入半决赛之前不会相遇.他们都需要在最后一轮小组赛中战胜对手从而进入淘汰赛,然后在淘汰赛中胜出才能进入半决赛.已知甲队在小组赛最后一轮和淘汰赛中获胜的概率分别为
和
;乙队在最后一轮和淘汰赛中获胜的概率分别为
和
;丙队在最后一轮和淘汰赛中获胜的概率分别为
和
,其中
.
(1)甲、乙、丙三队中,谁进入半决赛的可能性最大;
(2)若甲、乙、丙三队中恰有两队进入半决赛的概率为
,求
的值;
(3)在(2)的条件下,设甲、乙、丙三队中进入半决赛的队伍数为
,求
的分布列及期望.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa174dffdf8206c7c51b514769dd9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ee34861e71a34cb0d9aa743f632c8c2.png)
(1)甲、乙、丙三队中,谁进入半决赛的可能性最大;
(2)若甲、乙、丙三队中恰有两队进入半决赛的概率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67958ae7600c53b0dbc7a28203a7bd4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(3)在(2)的条件下,设甲、乙、丙三队中进入半决赛的队伍数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
您最近一年使用:0次
2024-06-05更新
|
916次组卷
|
3卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
名校
3 . 如图(1),已知菱形
中
,
,沿对角线
将其翻折,使
,设此时
的中点为
,如图(2).
是点
在平面
上的射影;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
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4 . 如图,在平面直角坐标系中,
和
是
轴上关于原点对称的两个点,过点
倾斜角为
的直线
与抛物线
交于
两点,且
.
为
的焦点,求证:
;
(2)过点
作
轴的垂线,垂足为
,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08136e6bc876f29a13d1204d9d621db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fea0b6471289760543596f5f45aa43ae.png)
(2)过点
![](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/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14cc1572ca21da2e3271484f127a5094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-06-03更新
|
487次组卷
|
3卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
名校
解题方法
5 . 已知数列
的前
项和为
,且满足
.数列
的前
项和为
,且满足
,
.
(1)求数列
的通项公式;
(2)若
,设数列
的前
项和为
,且对任意的
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8370a173854471a3eb27637993a3d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afea94a2f1b5d84a6290bd971d0b302b.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0197eeeeaafec6b1fdd7bb8509572f6b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac07953530e3c248b3438fb200fb1661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87bd7d18f67e90a7c37fad4252e43c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0015dec9eaa9a4896d855bebe6294a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024-06-03更新
|
475次组卷
|
2卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
名校
解题方法
6 . 在
中,角
的对边分别为
已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b640d16b04c89cdd8e853783fc3236c8.png)
.
(1)求角
的大小;
(2)若
,求
的面积;
(3)若
为BC的中点,求AD的长.
![](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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b640d16b04c89cdd8e853783fc3236c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a82bc457574fe3939a95bcef6bc4f6f.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0ebcdb0bb85d94c3834d9c910dc56c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be394823f4d9c69053e3186db87b6251.png)
您最近一年使用:0次
2024-06-03更新
|
1663次组卷
|
4卷引用:浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题
浙江省绍兴市第一中学2024届高三下学期5月模拟数学试题陕西省咸阳市实验中学2023-2024学年高一下学期第二次月考数学试卷重庆市乌江新高考协作体2023-2024学年高一下学期5月期中数学试题(已下线)江苏省南京市建邺高级中学2022-2023学年高一下学期期末数学试题
名校
解题方法
7 . 帕德近似是法国数学家亨利•帕德发明的用有理多项式近似特定函数的方法.给定两个正整数
,函数
在
处的
阶帕德近似定义为:
,且满足:
,
,
,…,
. 已知
在
处的
阶帕德近似为
.注:
,
,
,
,…
(1)求实数
的值;
(2)当
时,试比较
与
的大小,并证明;
(3)定义数列
:
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab984fa2801f780e08903b339c9d041f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8ef6c18c8edf9f4c781376d5ce400a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a8ad090ff2c19019f6efc799ae39b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c59886eb50089cc9bee3afa10282fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089b65749e52fc6346eab9bb5c49e5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699f767ccf837c2bf8019d03451849c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d307aa65d930bc8e51835eb147de513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07c900467299135fcaa990fd4f7f88b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d5f39870cf13db62e51ef501ce4c347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab14b9de29d16032cbf69ec5a013d3cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77f98b0044dc829092b2d1a4a88e5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c8fbc7623b9264d45a0ec4b440aef7c.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
(3)定义数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ea8d0e50065114b05ef2dc1ea1129cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d99c7518bbf5813ffbc18696c753ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e4e524dd686e35ab3e6482192a201.png)
您最近一年使用:0次
2024-05-31更新
|
663次组卷
|
3卷引用:浙江省绍兴市上虞区2023-2024学年高三下学期适应性教学质量调测数学试卷
名校
解题方法
8 . 已知复数
对应的向量分别为
和
,其中
为复平面的原点.
(1)若复数
在复平面内对应的点在第二象限,求实数
的取值范围;
(2)求
在
上的投影向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7749449ae4fd94d4ddd134b55202e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1eeb629a6f94d187154b9e0fba4eb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3c117496cb868a9ac9692fa12b8e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ee918684b74bfb93fb3a6df219d80ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987a2625dae99578e5c0e7b57d4a1c2f.png)
您最近一年使用:0次
名校
解题方法
9 . 如图,在四棱锥P﹣ABCD中,△PAB是边长为2的正三角形,BC=AB=2AD,AD
BC,AB⊥BC,设平面PAB∩平面PCD=l.
(2)线段PB上是否存在一点E,使l
平面ADE?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67be899bc131ec1b9921ae9787c40d5.png)
(2)线段PB上是否存在一点E,使l
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67be899bc131ec1b9921ae9787c40d5.png)
您最近一年使用:0次
10 . 在平面直角坐标系
中,动点
(
)与定点
的距离和
到直线
:
的距离之比是常数
.
(1)求动点
的轨迹方程;
(2)记动点
的轨迹为曲线
,过点
的直线
与曲线
交于
两点,直线
与曲线
的另一个交点为
.
(i)求
的值;
(ii)记
面积为
,
面积为
,
面积为
,试问
是否为定值,若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63309dbc3612815f6dbdee23d9a10adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d599059e6b2c918ab15ee22611b6962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)记动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25fe3ff55350310998d3d4f0048b45a.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/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53095716c043abb9dd391b3f6e17830.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7783506c9069a5b3c88597a9c8b2f9e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307569acb68c533e026a1f09c6328833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ddfea610328ce7f943de71550c743e1.png)
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2024-05-27更新
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860次组卷
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2卷引用:浙江省绍兴市上虞区2023-2024学年高三下学期适应性教学质量调测数学试卷