1 . 如图所示,在四棱锥
中,
平面ABCD,四边形ABCD是矩形,且
,
,E是棱BC上的动点,F是线段PE的中点.
平面ADF;
(2)若直线DE与平面ADF所成的角为30°,求EC的长.
![](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/f83a04565a8ebaa111894b724b0ba266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45fbffb9e2c7fa7c5006cde8da0cabe.png)
(2)若直线DE与平面ADF所成的角为30°,求EC的长.
您最近一年使用:0次
2 . 如图,四棱锥
中,
平面
,
,且
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/c599b562-d198-4f15-b774-03251efaa82e.png?resizew=159)
(1)求证:
平面
;
(2)求
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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1e04eeb4de72e5750dae77bcb6f88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c2c003b0954b99d2a1a20ce2c4a3a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/c599b562-d198-4f15-b774-03251efaa82e.png?resizew=159)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)若f(1)=2,求a的值;
(2)若存在两个不相等的正实数
,满足
,证明:
①
;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa6627e7ce98c5ffb61457de3b3525c.png)
(1)若f(1)=2,求a的值;
(2)若存在两个不相等的正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2037b0bad7c7a312bac1ac0653d9a491.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4b02af22df6e2227efd38c77deba1e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b082285a9dbb8ae0f2def2cdc59e740.png)
您最近一年使用:0次
2022-01-19更新
|
2661次组卷
|
6卷引用:2022年1月浙江省普通高中学业水平考试数学试题
2022年1月浙江省普通高中学业水平考试数学试题(已下线)专题3-7 导数压轴大题归类:不等式证明归类(2)-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)专题05 极值点偏移问题与拐点偏移问题(已下线)专题05 极值点偏移问题与拐点偏移问题-2专题03E函数解答题(已下线)重难点突破05 极值点偏移问题与拐点偏移问题(七大题型)-2
解题方法
4 . 已知函数
.
(1)若函数
的最大值为0,求
的值;
(2)已知直线
(
),证明有且仅有两个不同的实数
,使得直线
与曲线
,
相切,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4151a64e265e68da869158181c84ff95.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242b43b2d0c7279cbff252e4a16da10e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b244a88c2fbf268ba5438b73531dd2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1d5e94ab38981bdff33a251d6fd73f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0638e16ba586ab5c531ac26b0dee3a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7152513c508baee498765e3802237bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41fb333ff90c0461aa7210c6c212a709.png)
您最近一年使用:0次
解题方法
5 . 已知数列
满足:
,
,证明:当
时,
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c72b8f18fe71a6d7a4c29578a88d95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89324778d9ef3bfb8fda853a8769441.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdf72718aa432d70f58bf4c28ee771b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf4b1336573a73ad45705c38f2392f1.png)
您最近一年使用:0次
6 . 如图,已知四边形
是菱形,
,
绕着
顺时针旋转
得到
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/2021/10/12/2827861522194432/2833521877753856/STEM/4067c52e-a665-49c2-9b47-c07f47e18080.png)
(1)求证:
平面
;
(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/e6906f59d09ce31956d6f5ea2b23fc77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/2021/10/12/2827861522194432/2833521877753856/STEM/4067c52e-a665-49c2-9b47-c07f47e18080.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c2b786c64e6a9ed2ec5670cde74f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
7 . 如图,已知抛物线
上一点
到焦点
的距离为
,直线
与抛物线交于
两点,且
(
为坐标原点),记
,
的面积分别为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d006cfc6-e5f5-46d6-a5e7-c2cd6462799d.png?resizew=173)
(1)求抛物线的方程;
(2)求证直线
过定点;
(3)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4569dd44eeb1f2ee56c930e609b6b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6e46c3989bc6e4e6bb2fb93bfc8ad1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e55b85a1dc91ee8a026ad44e82d42b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/d006cfc6-e5f5-46d6-a5e7-c2cd6462799d.png?resizew=173)
(1)求抛物线的方程;
(2)求证直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21cbb1c2bcbcb8391ac5a879f2ae0.png)
您最近一年使用:0次
8 . 已知抛物线
的焦点为
,点
在
上,且
(
为坐标原点).
(1)求
的方程;
(2)若
是
上的两个动点,且
两点的横坐标之和为
.
(ⅰ)设线段
的中垂线为
,证明:
恒过定点.
(ⅱ)设(ⅰ)中定点为
,当
取最大值时,且
,
位于直线
两侧时,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ac8fe62f8e955e60f351a06e68dace.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b36bb0e58d69f19bebc43670677caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3c1bddc298ef31a7904ee1dbb2257a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
(ⅰ)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(ⅱ)设(ⅰ)中定点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05da40a2d7dab5d6a003906ca19d4749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/dc424cb041fc543649a2379d85d1d1e4.png)
您最近一年使用:0次
2021-08-29更新
|
628次组卷
|
10卷引用:2022年1月浙江省普通高中学业水平考试数学仿真模拟试卷B
(已下线)2022年1月浙江省普通高中学业水平考试数学仿真模拟试卷B(已下线)考点38 直线与圆锥曲线的位置关系-备战2022年高考数学一轮复习考点帮(浙江专用)全国100所名校2021年高考冲刺试卷(样卷一)文科数学试题(已下线)专题13 圆锥曲线-备战2022年高考数学(文)母题题源解密(全国乙卷)(已下线)专题21 圆锥曲线综合-备战2022年高考数学(理)母题题源解密(全国乙卷)(已下线)2.4 抛物线(提高练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)第06讲 抛物线的简单几何性质-【帮课堂】(已下线)3.3.2 (分层练)抛物线的简单几何性质-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)(已下线)3.3 抛物线(精讲)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)江苏省泰州中学2021-2022学年高二下学期第一次质量检测数学试题
9 . 已知二次函数
,且
时,
.
(I)若
,求实数
的取值范围;
(II)
的最大值;
(III)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a6bea084567e3055f0e58499398a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366839b25310cb3168d411b1d5f73b06.png)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8066f8ed959c1316358fcbf802b7a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(II)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3697b04b4b7bdd6c42b62b0ae7b6c3dc.png)
(III)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e020de76853a6fa9b9e3f41d84c42d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97d397a6e7abac0ad425289a017e4f07.png)
您最近一年使用:0次
名校
解题方法
10 . 设
,已知函数
.
(1)若
是奇函数,求
的值;
(2)当
时,证明:
;
(3)设
,若实数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e139ffce599f7fb165e2fd6febe6db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c2df3d6cdcd90cb85f831fc8bad300.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c2ece75f059bd9db80493f91a42b9b4.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd423a80d5b6fea8753fa1813cfbcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad78cd16f1bb10afa35a10ab257ad1a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35956581b6f0f3c7daa8062055db56e.png)
您最近一年使用:0次
2021-01-14更新
|
5447次组卷
|
15卷引用:2021年1月浙江省普通高中学业水平考试数学试题
2021年1月浙江省普通高中学业水平考试数学试题浙江省台州市2020-2021学年高一上学期期末模拟数学试题浙江省杭州市学军中学2020-2021学年高一下学期开学考试数学试题(已下线)热点06 函数的奇偶性-2022年高考数学核心热点突破(全国通用版)【学科网名师堂】(已下线)【类题归纳】双曲双勾 放缩降阶(已下线)卷09 函数的概念与性质 章末复习单元检测(难)-2021-2022学年高一数学单元卷模拟(易中难)(2019人教A版必修第一册)福建省莆田第一中学2021-2022学年高一上学期期中考试数学试题(已下线)专题3.9 函数性质及其应用大题专项训练(30道)-2021-2022学年高一数学举一反三系列(人教A版2019必修第一册)(已下线)第5章《函数概念与性质》 培优测试卷(二)-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)安徽省合肥市第一中学、第六中学2021-2022学年高一下学期期末联考数学试题广东省东莞市东莞实验中学2022-2023学年高一上学期11月期中考试数学试题(已下线)5.4 函数奇偶性-2022-2023学年高一数学《基础·重点·难点 》全面题型高分突破(苏教版2019必修第一册)四川省绵阳市三台县三台中学校2022-2023学年高一下学期第一次检测数学试题(已下线)必修第一册综合检测-人教A版(2019)必修第一册单元测试基础卷江西省吉安市新干中学2023-2024学年高一上学期期末模拟数学试题