名校
1 . 已知
为锐角
的高,
为
中点,
于点
,延长
至
,使得
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/251ad998-628d-454f-80c5-258fbecb0d07.png?resizew=161)
(1)证明:
;
(2)证明:
;
(3)若
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c38dfd14dde969702dff97ef2270f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0792d20f1b18cc0367c8a3ce5492296.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/251ad998-628d-454f-80c5-258fbecb0d07.png?resizew=161)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023bbaa6d993d5653a70ef88342daabe.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26910bb351f9cc7a34b1b69944c6d8b8.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61fbda9345c1cb562da40da144ca834d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61510c34c5795d7261569b4d09098271.png)
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名校
2 . 给定数列
.对于任意的
,若
恒成立,则称数列
是互斥数列.
(1)若数列
,判断
是否是互斥数列,说明理由;
(2)若数列
与
都是由正整数组成的且公差不为零的等差数列,若
与
不是互斥数列,求证:存在无穷多组正整教对
,使
成立;
(3)若
(
是正整数), 试确定
满足的条件,使
是互斥数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51a54da56300aa0ca6d860e7dab876e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6122dceb035e49cc2fdb6ba76fc3ee94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d27db544d5acc32c822a085cee8da7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
(2)若数列
![](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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c227519f89ed6e99a065278ee1a689f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b66feb4c28455ae16838fb0de06f849.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9a9aec0708932cb71bd2999bd3e7062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca31577dd76afbc1b720cdcad88ffd16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca31577dd76afbc1b720cdcad88ffd16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e567d7e9761951a266953c8d5042ac.png)
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2022高三·全国·专题练习
真题
解题方法
3 . 如图,中心在原点O的椭圆的右焦点为
,右准线l的方程为:
.
![](https://img.xkw.com/dksih/QBM/2022/10/8/3083513253748736/3083907999703040/STEM/e7b5917b930944f1825aef6f6af44bc0.png?resizew=255)
(1)求椭圆的方程;
(2)在椭圆上任取三个不同点
,使
,证明:
为定值,并求此定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7b07ace87ed58fdc1f1bc78a04aeda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5072bef93b6845e3332a2b212e32b46.png)
![](https://img.xkw.com/dksih/QBM/2022/10/8/3083513253748736/3083907999703040/STEM/e7b5917b930944f1825aef6f6af44bc0.png?resizew=255)
(1)求椭圆的方程;
(2)在椭圆上任取三个不同点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7807638578edd712265463a7a5eab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef451b1e15bc2c490e4beee7ed71b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6baa2fab5b41da5c141f42ba8a4cc225.png)
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名校
解题方法
4 . 对于实数构成的集合
.若对任意
都有
(其中“
”表示普通的乘法运算),则称集合
对“
”是封闭的.
(1)已知集合
,判断
是否属于集合
;
(2)在(1)的条件下,若
,证明
的充要条件是
;
(3)若集合
对“
”都是封闭的,试判断
是否对“
”封闭,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8af42f2ec410ad1b28be69d3415ed10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a9f1ff137e76626b7b608cef7c36349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
(1)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50dae68b646f975a8a0c6bed67d028ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57ed82958abb00776e75987aa62d723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ecef225b27b5857d2d76fbe5b34982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff58fdfe14af9fb8aa0e0cf0d60853a.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a3375139541ed61929fa658f16bb7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2468403b3eba9e40bfa36f464e927738.png)
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真题
5 . 如图,
为椭圆的两个顶点,
为椭圆的两个焦点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/81b84268-931b-499e-914d-cc9003bd1086.png?resizew=397)
(1)写出椭圆的方程及准线方程;
(2)过线段
上异于O,A的任一点K作
的垂线,交椭圆于P,
两点,直线
与
交于点M.求证:点M在双曲线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32622697953ab5e4b4e35cd62d1b1c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/18/81b84268-931b-499e-914d-cc9003bd1086.png?resizew=397)
(1)写出椭圆的方程及准线方程;
(2)过线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aba947934b05caae8b0c1fb1a522a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d49e09b17b19d7c787e95bcf1e9731.png)
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名校
解题方法
6 . 已知双曲线
的方程为
.
(1)直线
与双曲线的一支有两个不同的交点,求
的取值范围;
(2)过双曲线
上一点
的直线分别交两条渐近线于
两点,且
是线段
的中点,求证:
为常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
(1)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19154d71383328a57153a293beb1faec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)过双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b6ab702f8e93cc1e680a7d7af06786.png)
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2022-12-05更新
|
383次组卷
|
3卷引用:上海市行知中学2020-2021学年高二上学期12月月考数学试题
上海市行知中学2020-2021学年高二上学期12月月考数学试题湖北省襄阳市老河口市第一中学2022-2023学年高二上学期元月月考数学试题(已下线)广东省深圳市高级中学(集团)2023届高三上学期期末数学试题变式题17-22
真题
解题方法
7 . 如图1,E,F分别是矩形ABCD的边AB,CD的中点,G是EF上的一点,将
分别沿AB,CD翻折成
,并连接
,使得平面
平面ABCD,
,且
,连接
,如图2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/33851505-64b4-4f3c-acf8-c02b72f7e1e1.png?resizew=421)
(1)证明:平面
平面
;
(2)当
时,求直线
和平面
所成的角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c21f7392b348717bad30167d87f959d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64bf472d11d49b130b5fe3aabd3feeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af9a10717d214e599ee121de74bf451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80aecacfa887e53407eb02a32f510ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1101659bacb66165c5293e6baaf64571.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88c0117b251e91cd16feaa1144cd78e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77914a4462c30293bef6f989ade88ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/33851505-64b4-4f3c-acf8-c02b72f7e1e1.png?resizew=421)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80aecacfa887e53407eb02a32f510ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4836fb713073d6843503549591d894c7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f25a517b3948d74a4b8fdbf66f8c879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77914a4462c30293bef6f989ade88ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4836fb713073d6843503549591d894c7.png)
您最近一年使用:0次
真题
8 . 已知
为正整数.
(1)设
,证明:
;
(2)设
,对任意
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75929e19a42baf63a439894dad69b906.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1dd675bb62d076f5be59a781197802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e33636f377b31dbb0323577f5639c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab905ff8e2cf71cfcd68888ffa3f2c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f3b42f09b41461d1c42c654f57fdc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93fe9db2871e6c73dcff65751c21d8a1.png)
您最近一年使用:0次
真题
9 . 已知
,数列
满足
.
(1)已知数列
极限存在且大于零,求
(将A用a表示);
(2)设
,证明:
;
(3)若
对
都成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921f14448c72573496a843cfeeed97ff.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d905cb5c1bc27e9ba50fc0e68baa9a23.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3187871d19df4c8fdb39ed642ff2b4ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/591a92f132b64164de38ef5948fb305e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064adaf5bd5d4f9a0b737585a72f7a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7247567230a3bebb8fa497c2b22bb02.png)
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真题
解题方法
10 . 设函数
,其中常数m为整数,
(1)当m为何值时,
;
(2)定理:若函数
在
上连续,且
与
异号,则至少存在一点
,使
.试用上述定理证明:当整数
时,方程
在
内有两个实根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d029513622fcaae77734f88cfbd6450b.png)
(1)当m为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)定理:若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812b1efe6b4a2c6cdabfaf0d903bfecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1486d2ae6c7e7904ab47b909039ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6325af3dc7c87eaaf3f14df9d400b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34f42b3be15518c29e3689c9fe6d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf553ee3093d0dd060dbd79b43ce6b4.png)
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