1 . 在直角坐标系xOy中,以O为极点,x轴的正半轴为极轴建立极坐标系,直线
、
的极坐标方程分别为
,
,设直线
、
的交点为M.
(1)求点M的直角坐标;
(2)设过点M且倾斜角为
的直线与圆
交于A、B两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8f64ebec4a71a609204458cc54df82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea5c8fe935beac660eda538e59cd43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba0817b04eb9839b175e258152be393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1881eca044c7508555dc59a6c3118dbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8f64ebec4a71a609204458cc54df82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eea5c8fe935beac660eda538e59cd43f.png)
(1)求点M的直角坐标;
(2)设过点M且倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65af1d6b6b831ebbdc36dda5f304a3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69a7c35d0113b81923e7dbc64e56ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c22247587ac84157419bb0adce41b21.png)
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2 . 已知函数
是
上的增函数,
,对命题“若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3441556c159231d9b04b757c8acfed.png)
”,写出其逆命题,判断逆命题的真假,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b29171d217e72b44bfcdb9509c7543d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3441556c159231d9b04b757c8acfed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d86dc352cd91eb84f97a857a4901ad.png)
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解题方法
3 . 计算下列各式的值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be3a6df3c51e136ed2fc4e886a13ac1c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b440df48638896bc4e3f5058a6b7e860.png)
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12-13高三·广东广州·阶段练习
名校
解题方法
4 . 已知点
在曲线
,(
为参数)上,则
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011241c5b4dc29f37ca8e2959ec8e82a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/916bb2cc1b29574ff95b47567c59ee0c.png)
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2020-06-16更新
|
395次组卷
|
12卷引用:吉林省梅河口市第五中学2019-2020学年高二5月月考数学(文)试题
吉林省梅河口市第五中学2019-2020学年高二5月月考数学(文)试题(已下线)2014届广东省广州市高三年级调研测试理科数学试卷(已下线)2014届广东省广州市高三年级调研测试文科数学试卷四川省泸县第一中学2019-2020学年高二下学期第二次月考数学(文)试题上海市浦东新区建平中学2019-2020学年高三下学期(4月)模拟数学试题吉林省实验中学2019-2020学年高二下学期期中考试数学(理科)试题(已下线)2014届江西省宜春市高三考前模拟理科数学试卷2015-2016学年安徽师大附中高二下期中文科数学试卷河北省武邑中学2018-2019学年高二下学期期中数学(文)试题安徽省蚌埠市第二中学2019-2020学年高二下学期期中文科数学试题山西省长治市第二中学校2020-2021学年高二下学期期中数学(文)试题沪教版(2020) 选修第一册 新课改一课一练 第2章 2.5.2简单的参数方程
名校
5 . 已知直线
:
与圆
:
相交于
,
两点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015fda56d8543b6ebb221d44a86bddda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f7414a32067257ec2557dbb58c7156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b1113864968119e61aeee9ba9c613b.png)
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2020-06-16更新
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359次组卷
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2卷引用:吉林省长春市第二十九中学2020-2021学年第一学期高二第二学程考试数学(文)试题
名校
解题方法
6 . 已知定义在R上的函数
满足
,且当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8616945253322a5372bab34069a0819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e01d07f3a82196cabb98a2ab98686eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b8cc27e87e231896b65a50665be2cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0cf63688327febf346beee23b10601.png)
A.![]() | B.![]() | C.![]() | D.1 |
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2020-06-15更新
|
587次组卷
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4卷引用:河北省石家庄市藁城区第一中学2019-2020学年高一下学期第三次月考数学试题
名校
解题方法
7 . 如图,在
中,
,
的角平分线
交
于
,设
,且
.
![](https://img.xkw.com/dksih/QBM/2020/6/8/2480353622671360/2480400286375936/STEM/8182f8149b814df4a181606beffc7ac1.png?resizew=154)
(1)求
值;
(2)若
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df97e7e9cb10fc90403b41e80e1c460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e062b576227465b4512dd653c3f16d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750303cc97d19b55b5acbc9f162909c2.png)
![](https://img.xkw.com/dksih/QBM/2020/6/8/2480353622671360/2480400286375936/STEM/8182f8149b814df4a181606beffc7ac1.png?resizew=154)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5509269c540ac83ba34d2e8a31242903.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914a0f9a14fd49a938a90618cc5843e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2020-06-08更新
|
560次组卷
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2卷引用:吉林省长春汽车经济技术开发区第三中学2022-2023学年高一下学期4月月考数学试题
8 . 在直角坐标系
中,曲线
的参数方程是
(
为参数),以
为极点,
轴的正半轴为极轴建立极坐标系.
(1)求曲线
的极坐标方程;
(2)设曲线
的极坐标方程是
,曲线
的极坐标方程是
,
与
的一个交点为
点
异于点
,与
的交点为
,求
.
![](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/99fec0809f0d7a854cdcf8f36e103bd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba4f3563df771d63da59b8346aac0753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a6a1d319648bb969845a9159cdba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b554486bc34b098b4b3e878a2c4613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3904463e169fb25dbd36fa257edd2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
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解题方法
9 . 如图,
是边长为2的正三角形,
是以
为斜边的等腰直角三角形.已知
.
(1)求证:平面
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/26/2163ecdc-445c-4c84-ac79-3415ff65eaff.png?resizew=161)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
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2020-05-27更新
|
411次组卷
|
9卷引用:浙江省嘉兴市2018-2019学年高三上学期9月教学测试数学试题
浙江省嘉兴市2018-2019学年高三上学期9月教学测试数学试题天津市第五十五中学2020-2021学年高二(上)第一次月考数学试题吉林省东北师大附中2021-2022学年高二上学期大练习(一)数学试题2018届浙江省嘉兴市高三上学期基础测试数学试题广西钦州市第四中学2020-2021学年高一3月份考试数学试题河北省石家庄市第十五中学2021-2022学年高二上学期第一次月考(10月)数学试题河南省漯河市第二高级中学2022-2023学年高二上学期第一次月考数学试题浙江省湖州市吴兴高级中学2023-2024学年高二上学期10月阶段性测试数学试题广东省肇庆市四会中学、广信中学2023-2024学年高二上学期第二次月考数学试题
解题方法
10 . 已知在四边形
中,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/53732807-cb4b-4f5e-aada-d3eb38746d5d.png?resizew=165)
(1)求
的长及四边形
的面积;
(2)点
为四边形
所在平面上一点,若
,求四边形
面积的最大值及此时点
的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173904239da66b7bef7cb1d997cc40ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/13/53732807-cb4b-4f5e-aada-d3eb38746d5d.png?resizew=165)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6229ca4deeb99c665ca7e96b2e7afa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2bdc60a42a1addaf772c18972e576fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2020-05-18更新
|
305次组卷
|
3卷引用:吉林省通榆县第一中学2020-2021学年高三上学期第四次质量检测数学(理)试题