解题方法
1 . 函数
图象过定点
,点
在直线
上,则
最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95415ece4e923a8976c674d6f9950263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8054a245497ee81d593b71a228cdca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b3543df8577f43963dfb53537b25df.png)
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2 . 在四棱锥
中,侧面
为等边三角形,底面ABCD为直角梯形,
,
,
,
,E为线段AB的中点,过直线CE的平面与线段PA,PD分别交于点M,N.
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963608780251136/2965210494214144/STEM/7813ebef-4599-4135-a3a9-1a92ddfa9263.png?resizew=185)
(1)求证:
;
(2)若直线PC与平面CEMN所成的角的余弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b377f22aafd3742ad860f77abaacef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e808897e0e659740988fb3311f610dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb466d3d90e7d27f27c60c8beecd4444.png)
![](https://img.xkw.com/dksih/QBM/2022/4/22/2963608780251136/2965210494214144/STEM/7813ebef-4599-4135-a3a9-1a92ddfa9263.png?resizew=185)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7784be0caa2ffb58bbebf81fa127c1.png)
(2)若直线PC与平面CEMN所成的角的余弦值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642a7dd471434c923f76809dfa5ee183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037f00f51c64d7dde2d46517003bca65.png)
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名校
解题方法
3 . 已知椭圆
的离心率为
,过焦点且与长轴垂直的直线被椭圆截得的弦长为
.
(1)求椭圆C的方程;
(2)设不过点
的直线l与C相交于A,B两点,直线TA,TB分别与x轴交于M,N两点,且
.求证直线l的斜率是定值,并求出该定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求椭圆C的方程;
(2)设不过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05bdd8eb683395ada6a7d339c3929640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c9b4a7cc9dc8afd7b55b1c04266f44.png)
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2022-04-15更新
|
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4卷引用:新疆2022届高三诊断性自测(第二次)数学(文)试题
新疆2022届高三诊断性自测(第二次)数学(文)试题(已下线)回归教材重难点04 圆锥曲线-【查漏补缺】2022年高考数学(文)三轮冲刺过关(已下线)一轮复习适应训练卷(5)-2022年暑假高二升高三数学一轮复习适应训练卷 全国通用 辽宁省铁岭市昌图县第一高级中学2022-2023学年高二上学期期中数学试题
名校
4 . 给定函数
.
(1)判断函数
的单调性,并求出
的极值;
(2)求出方程
的解的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdfe48038034eb671b3852e261c24f3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求出方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efa836258577f6af7c88e37f2b6800a.png)
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2022-04-10更新
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6卷引用:新疆部分地区2024届高三高考素养调研第二次模拟考试数学试题
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5 . 已知
.
(1)求
的最小正周期和单调减区间;
(2)在△
中,
,D为BC中点,
,求△
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853c9895d92c287738f89ef15e40e3e6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10d243584988cafa7e80ac9c9da0d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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3卷引用:新疆石河子市第一中学2022届高三3月第一周模拟数学(理)试题
新疆石河子市第一中学2022届高三3月第一周模拟数学(理)试题(已下线)3.6 三角函数的专题综合运用(精练)-【一隅三反】2023年高考数学一轮复习(基础版)(新高考地区专用)江苏省南通市海安市立发中学2022-2023学年高三上学期学情检测(二)数学试题
6 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a544e2756f1ab7ac46b79f2f821c9d.png)
(1)求不等式
的解集;
(2)设函数
的最小值为
,若正数
,
满足
,求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90a544e2756f1ab7ac46b79f2f821c9d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58fdd2c1e99361347f919d1ae941460a.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e1e5c1931f61d86871e9c9d28a8ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
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7 . 如图,在三棱锥
中,
平面
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/dd23344d-8800-4817-a52b-86bf8211d862.png?resizew=195)
(1)证明:
;
(2)若
,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/dd23344d-8800-4817-a52b-86bf8211d862.png?resizew=195)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0063f3f48e49f2970ec7f097567cef5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace900749d0861aa51fcc6d72c51f82c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a438393ddfc7da1804baf4932442bb35.png)
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2卷引用:新疆乌鲁木齐地区2022届高三第二次质量监测数学(理)试题(问卷)
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解题方法
8 . 已知F为抛物线
的焦点,点M在抛物线C上,O为坐标原点,
的外接圆与抛物线C的准线相切,且该圆周长为
.
(1)求抛物线C的方程;
(2)设
,B是抛物线C上一点,且
,直线
与直线
交于点Q,过点Q作
轴的垂线交抛物线C于点N,证明:直线
恒过一定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2ce6d23fb52cc513580a8f0e6760c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
(1)求抛物线C的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55726d3d7b104d28d6204845ba24567d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e6e15daf7b14dbff32c390f4984dcfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
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2卷引用:新疆维吾尔自治区2022届高三第二诊断性测试数学(理)试题(问卷)
9 . 已知各项均为正数的数列
满足
,
.
(1)求数列
的通项公式;
(2)若
,
,
成等差数列,求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd3cd72ce3609826ccfb08d75905519.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83a4fd5338a0eed248b4eb13d3fa88f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ea5fe1a6a4aab745741bf97f513218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2卷引用:新疆维吾尔自治区2022届高三第二诊断性测试数学(理)试题(问卷)
10 . 在平面直角坐标系
中,曲线
的参数方程为
(
为参数).以坐标原点为极点,
轴非负半轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)分别求曲线
的普通方程和直线
的直角坐标方程;
(2)设直线
与曲线
交于A,B两点,线段
的中点为Q,点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979e9cb249b0df646ffe7eae06f27cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22acb0e58b39989ec5d3b5a2f6742027.png)
(1)分别求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设直线
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88aa54f855334cab19d8d19ca9aea9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f722dbe3713f64878a9a1b07325345.png)
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2022-03-26更新
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2卷引用:新疆维吾尔自治区2022届高三第二诊断性测试数学(理)试题(问卷)