1 . 如图,在直三棱柱
中,
,
,
是
的中点,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/a47fbfe4-f3d3-43f7-928f-db00dfda28cb.png?resizew=179)
(1)求证:
平面
;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4009c00fc8d746b9e92b5888963fb311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/a47fbfe4-f3d3-43f7-928f-db00dfda28cb.png?resizew=179)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b61346bd4091070ba84a4046f87f365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac122cae7689dc16e4a576e7e7bb6b2.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a4613db540c9cb6a9d7e963bf89c2a8.png)
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3卷引用:上海奉贤区奉贤中学2018-2019学年高三上学期开学考试数学试题
名校
2 . 对于定义在
上的函数
,有下述命题:①若
是奇函数,则
的图象关于点
对称;②函数
的图象关于直线
对称,则
为偶函数;③若对
,有
,则2是
的一个周期;④函数
与
的图象关于直线
对称.其中正确的命题是______ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e356a6e54a669fda721085096c8416db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e356a6e54a669fda721085096c8416db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ae6de01444ba45649aef555dc5c84af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c3dd8fa2dc8c0c7e255bfb054ad34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb914a7e9e4f27aa4170fd2351cbf27f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
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3 . 已知
为双曲线
:
上的点,点
满足
,且
,则当
取得最小值时的点
到双曲线
的渐近线的距离为______ .
![](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/7c58fa4a337f0b81b991fb32e8e6e3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444ad081fd6ef41571b9af3df05f92ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc0f5d72bbbd15eca9f2b117ad4696a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517a8041c31709c7ae8f2fb287c961db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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4 . 在由正整数构成的无穷数列
中,对任意
,都有
,且对任意的
,数列
中恰有
个
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c612fb2fed7c255a981cff9013063f4f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3099bebe0d18159cb4b94a77e9537a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e36bff57bcfa86432b340e25e51d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c612fb2fed7c255a981cff9013063f4f.png)
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5 . 在
中,角
,
,
的对边分别为
,
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a267e9e86c270a042ceb1d0726db289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459459559720ab5e154a80723c47cc30.png)
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6 . 把函数
的图象上所有的点的横坐标缩短到原来的
倍(纵坐标不变),再把所得图象上所有点向左平行移动
个单位长度,得到的图象所表示的函数解析式为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
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7卷引用:上海奉贤区奉贤中学2018-2019学年高三上学期开学考试数学试题
上海奉贤区奉贤中学2018-2019学年高三上学期开学考试数学试题上海市黄浦区2017-2018学年高一下学期期中终调研测试数学试题河北省保定市第二中学2019-2020年高一上学期第三次月考数学试题(已下线)第7章 三角函数【过关测试】-2020-2021学年新教材高一数学下册单元复习一遍过(沪教版2020必修第二册)(已下线)第7讲 函数y=Asin+(wx+φ)的函数的图像(练习)-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)上海市川沙中学2021-2022学年高一下学期期末数学试题上海市青浦高级中学2022届高三上学期9月月考数学试题
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7 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709da0edf976fa482d58ac3a3aaf1ab7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709da0edf976fa482d58ac3a3aaf1ab7.png)
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8 . 若
,则与
同方向的单位向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1e0a1aae86d894c279978ae65368e3.png)
____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f155fddd54a9c98f331d9d44b3b43dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1e0a1aae86d894c279978ae65368e3.png)
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3卷引用:上海市奉城高级中学2018-2019学年高二上学期期中数学试题
上海市奉城高级中学2018-2019学年高二上学期期中数学试题上海市大团中学2018-2019学年高二上学期期中数学试题(已下线)专题2.3 平面向量【专项训练】-2020-2021学年高一数学下学期期末专项复习(沪教版2020)
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9 . 直线l过点A(1,2),且法向量为(1,-3),则直线l的一般式方程为____________
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10 . 将数列
的前
项分成两部分,且两部分的项数分别是
,若两部分和相等,则称数列
的前
项的和能够进行
等和分割.
(1)若
,试写出数列
的前
项和所有等和分割;
(2)求证:等差数列
的前
项的和能够进行
等和分割;
(3)若数列
的通项公式为:
,且数列
的前
项的和能够进行等和分割,求所有满足条件的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984824537a53fe7f96397f52431d64a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d4b11259c6a1d73a6f83f71d2d171f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b6f80547aedce182826b9a5f4bb14c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
(2)求证:等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084880549bcd7c9eed8f2cca960074dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0bfb81fa1ca248c0c88d18bacd59433.png)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80c1ed7b10ac7ca1cd81cdd39a8fcc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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3卷引用:上海市奉贤区2018-2019学年高三上学期期中(14校联考)数学试题