名校
解题方法
1 . 已知函数
,定义域为
.
(1)写出函数
的奇偶性(无需证明),判断并用定义法证明函数
在
上的单调性;
(2)若
,都有
恒成立,求实数
的取值范围;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d5adeebe138f4d90677afd1ad7ce61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662046df9f87264672dafd60d92e057b.png)
(1)写出函数
![](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/0109d06b8be2e402b5ffbb0aeb501009.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb61c076c156542dd4105842eefbf382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e442f10e63ad0dd3144ea73d3fa6dcf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0fa1210c98789833af075795fca365.png)
您最近一年使用:0次
2023-11-09更新
|
282次组卷
|
2卷引用:浙江省温州市苍南中学2023-2024学年高一上学期数学家摇篮竞赛试题
名校
2 . 如图,给定外心为
的锐角
,令
分别为
到对边的垂足.
为
的外接圆在
和
处的切线的交点.一条经过
且垂直于
的直线交直线
于
为
在
上的投影.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80273dbcfcd2fda629a42d425ff25199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e30c0a5c92f50dce1f7624709950ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ca00309261a540934d9b3ed9ba05b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95381ea2e4234a389f04150ff11660ef.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/73eec771-3787-4927-b668-78515fb9d732.png?resizew=198)
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3 . 设数列
满足
,且对任意整数
是最小的不同于
的正整数,使得
与
互质,但不与
互质.证明:每个正整数都在
中出现.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79ae17a7a504d6b0998364c13a9e0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cab8c94c52ac4170c6617790361246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7170836b85b2aad29b01f1af0e86d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7230de53663c75658c58bbf206a0085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bed25da42194b5a81d123933d5704f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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4 . 设实数
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a629ff9dcd6c23bf7846116c8581998b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb76c4956c01d52c178ae2ef29007689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9623f28eff10a0df572b338888f1ea62.png)
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5 . 设
为整数,
为实数.证明:存在整数
,使得对于任意实数
,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abefc7e7354cd2d17283c16c494ea879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5040ce82e687fd1a6f48442f36975523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/821ce7a655e8b5fecb99e04313c700b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f97bc1796c160ab600db7d85287ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e137ac7b96922341e43887e7f5fed30.png)
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名校
解题方法
6 . 近些年来,三维扫描技术得到空前发展,从而催生了数字几何这一新兴学科.数字几何是传统几何和计算机科学相结合的产物.数字几何中的一个重要概念是曲率,用曲率来刻画几何体的弯曲程度.规定:多面体在顶点处的曲率等于
与多面体在该点的所有面角之和的差(多面体的面角是指多面体的面上的多边形的内角的大小,用弧度制表示),多面体在面上非顶点处的曲率均为零.由此可知,多面体的总曲率等于该多面体各顶点的曲率之和.例如:正方体在每个顶点有
个面角,每个面角是
,所以正方体在各顶点的曲率为
,故其总曲率为
.
(1)求四棱锥的总曲率;
(2)表面经过连续变形可以变为球面的多面体称为简单多面体.关于简单多面体有著名欧拉定理:设简单多面体的顶点数为
,棱数为
,面数为
,则有:
.利用此定理试证明:简单多面体的总曲率是常数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d4f61c809edc290a6dc98f78edfb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9609625b502348556ff8ba32deac8caa.png)
(1)求四棱锥的总曲率;
(2)表面经过连续变形可以变为球面的多面体称为简单多面体.关于简单多面体有著名欧拉定理:设简单多面体的顶点数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303f53ed53db92be52facbf5154dfd08.png)
您最近一年使用:0次
2022-09-19更新
|
919次组卷
|
7卷引用:2022年浙江省温州市摇篮杯高一数学竞赛试题
2022年浙江省温州市摇篮杯高一数学竞赛试题(已下线)第01讲 空间几何体的结构、三视图和直观图与空间几何体的表面积和体积(练)(已下线)8.1 基本立体图形2(分层作业)-【上好课】2022-2023学年高一数学同步备课系列(人教A版2019必修第二册)(已下线)第五篇 向量与几何 专题21 曲率与曲率圆 微点3 曲率与曲率圆综合训练(已下线)11.2 锥体(第1课时)(七大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020必修第三册)(已下线)FHsx1225yl158(已下线)专题14 棱柱、棱锥和棱台-《重难点题型·高分突破》(苏教版2019必修第二册)
解题方法
7 . 已知函数
,
.
(1)若函数
在定义域上单调递减,求实数
的取值范围;
(2)若
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d668df21df1a32c726e9d75fa3dda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d668df21df1a32c726e9d75fa3dda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd85d4af7dfca7633dd9ca7993ec4d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a399a276e30510e557b42ee5db5510b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8d4ab24c1b8c51a1af4b995c720864.png)
您最近一年使用:0次
8 . 如图,已知抛物线
的焦点为
,直线
与抛物线交于
两点,过
分别作抛物线的切线
,
交于点
.过抛物线上一点
(在
下方)作切线
,交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/7010be9e-22f0-4144-940a-0b3e5e66e9d7.png?resizew=256)
(1)当
时,求
面积的最大值;
(2)证明
四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91356fe1338cd458e4b1761b36873145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072104dd362a079309bcf3916901b7df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5191fd3625bf6bd3744807e3ccdb030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5191fd3625bf6bd3744807e3ccdb030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cc6468ae954284918b1b54b188ae81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cc6468ae954284918b1b54b188ae81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a28be4d5a16cf245f6fa7c4088fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92adfef6c3f4b8c041958fbf0b01f6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16cc6468ae954284918b1b54b188ae81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86079725fcc03d623554ce82be14514.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/28/7010be9e-22f0-4144-940a-0b3e5e66e9d7.png?resizew=256)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dedff09ac873e40c3ee0ce3ecf2fa032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8b58ad3c066807c6b456932beafe39.png)
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9 . 如图,在钝角
中,
为钝角.设
的外角平分线与
过B和过C的高线分别交于点E,F,点M在线段EC上使得
,点N在线段BF上,使得
.证明:E,F,M,N四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fa3492cd1ac2b3f9278d3fe4cd4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fa3492cd1ac2b3f9278d3fe4cd4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cd09bf3d43769b015a0a8d5b34cdefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37595daefab7761a896f29f785d253d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/bc6bb557-dd54-4bd6-8e9a-982625129d7d.png?resizew=217)
您最近一年使用:0次
名校
解题方法
10 . 设函数
.
(1)证明:存在唯一的函数
,使得
;
(2)求所有的非负实数
使得
;
(3)
,
(i)证明:关于
的方程
与
都有唯一实根;
(ii)记
分别为方程
,
的实根,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041fc0e0ff542027634491e686a510b6.png)
(1)证明:存在唯一的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2ee09653f053eccbba4b85fbf97c3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aca8208f53be6a7033b4fd2a11c7964.png)
(2)求所有的非负实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8bfb563f79688d136e0cb958b5153c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1523685c2d0a9ef21660908378ac90.png)
(i)证明:关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713c59f274e9146b6d85375435315521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a4cb45ca6e42ced4a5c4026e2290f8.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd8ca3aa2d1ba52e82613d0d65d800e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713c59f274e9146b6d85375435315521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a4cb45ca6e42ced4a5c4026e2290f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c414bc882fb3c5e364582886c3325c.png)
您最近一年使用:0次