解题方法
1 . 设双曲线C:
(
,
)的右焦点为F,点O为坐标原点,过点F的直线
与C的右支相交于A,B两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/1e8e31f1-e40d-4c06-b771-0bac1138391c.png?resizew=147)
(1)当直线
与x轴垂直,且
两点的距离等于双曲线C的实轴长时,求双曲线C的离心率;
(2)若双曲线C的焦距为4,且
恒成立,求双曲线C的实轴长的取值范围.
![](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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/1e8e31f1-e40d-4c06-b771-0bac1138391c.png?resizew=147)
(1)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)若双曲线C的焦距为4,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c22b86f2cc5dc2f8053711f932a57f9.png)
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2 . 如图,在平行六面体
中,
,
,
,
,设
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/50a9a3de-63cc-47cc-ae84-144162a6fd74.png?resizew=172)
(1)用向量
表示
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9091e7a2ff0d2ece4c4e0eff9d76f679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e6db510fc4e808462fcd30d93a22e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cfd839b35f8db9d0f5b588679c6b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5ad65006ab94c402084227f4675b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/24/50a9a3de-63cc-47cc-ae84-144162a6fd74.png?resizew=172)
(1)用向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08b344a0ebe520f4147702257aa276b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2d1ab93ce2ae18136f1597aacfbca2.png)
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解题方法
3 . 已知圆O:
,直线
.
(1)若直线l与圆O交于不同的两点A,B,当
时,求k的值;
(2)若
时,点P为直线l上的动点,过点P作圆O的两条切线PC,PD,切点分别为C,D,求四边形
的面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b775e4e52620e32f713a0326776c842b.png)
(1)若直线l与圆O交于不同的两点A,B,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033274547930b2e2dcd4ea4919a36738.png)
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4 . 已知圆
过点
和点
,圆心在直线
上.
(1)求圆
的方程,并写出圆心坐标和半径的值;
(2)若直线
经过点
,且
被圆
截得的弦长为4,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e18e9b80fdeaa8bd3cf97b3c214448f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1282cc43ebf4b459832fec04d805989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f047e7ed44a3897ec79c6c6a0c641fcc.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024-02-24更新
|
218次组卷
|
2卷引用:浙江省绍兴市上虞区2023-2024学年高二上学期期末质量调测数学试题
名校
解题方法
5 . 已知函数
为奇函数.
(1)求a的值;
(2)设函数
,
i.证明:
有且只有一个零点;
ii.记函数
的零点为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b073296a8d31514d8b394331df70c2.png)
(1)求a的值;
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6625dd55e79c5115e6e7299cb83600.png)
i.证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
ii.记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2faa63899873813748f6a28b8a92e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be0b46f954f3590a00fe5a074e8e931b.png)
您最近一年使用:0次
2024-02-23更新
|
583次组卷
|
3卷引用:浙江省宁波市鄞州中学2023-2024学年高二下学期期中考试数学试题
(已下线)浙江省宁波市鄞州中学2023-2024学年高二下学期期中考试数学试题浙江省温州市浙南名校联盟2023-2024学年高一下学期寒假返校联考数学试题广东省广州市铁一中学2023-2024学年高一下学期3月月考数学试题
解题方法
6 . 已知等比数列
的公比
,且
,
是
,
的等差中项.数列
满足
,数列
的前n项和等于
.
(1)求数列
的前n项和
;
(2)求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda6dc559d07bc22c9a0ed1e3a6d01d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3104915bee1cc61f9db3e6dbff6a095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/310ed4bbdf24e0803b4b2adbacddec12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b1e8d1e12e11850958dd8cd1f320dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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解题方法
7 . 已知数列
是公差不为0的等差数列,数列
是各项均为正数的等比数列,且
,
,
.
(1)求数列
和
的通项公式;
(2)设
,求数列
的前10项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5a7a17a394e868e0acd1803a9ab795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/769fe52ac96348d3b12d23d06d702595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab69f14c8d3a68fe7532e0f8d69c6d5e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e213371996f2199131d0c3ca8aac88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
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8 . 如图,四棱锥
中,底面
为正方形,
平面
,点
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/c37383f1-7423-4c39-8b4b-ca5b300aabbe.png?resizew=166)
(1)求证:
;
(2)求平面
与平面
的夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b55fce0a4716058fe0ad64b01eccc66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3a25299c121dbb883fd3c7918d566d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/c37383f1-7423-4c39-8b4b-ca5b300aabbe.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc6269077b8e6b063efb583c91a564d.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05479863cf9f41e2ad9f843ea740a3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
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9 . 在四棱锥
中,底面
是边长为2的菱形,
,侧面
是边长为2的正三角形,侧面
平面
.
(1)证明:
;
(2)若点
为棱
上的动点,求平面
与平面
夹角的正弦值的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb552b9e21dbaba74d11aa747790.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2357afc90ee9625e31484defac488e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/22/73551706-cc94-4756-81ae-a5f36937cd06.png?resizew=167)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d8455347237248c7701100642c5b119.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64484f96568410926e0c50898eba6e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
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10 . 已知抛物线
的焦点为
,
为
上一点且纵坐标为4,
轴于点
,且
.
(1)求
的值;
(2)已知点
,
是抛物线
上不同的两点,且满足
.证明:直线
恒过定点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfba66e25f01d30e190e1458375da661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adb5ea2e5533717253ff00a6ecdf562.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3757244698d32aab7a9af1e044bf1da9.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/da006b1390397b520a0e8767cd49e7f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e1ce520d999c067d9301e0de4a7c15.png)
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