2024高一下·上海·专题练习
1 . 某同学用“五点法”画函数
,
在某一周期内的图象时,列表并填入的部分数据如下表:
(1)请填写上表的空格处,并写出函数
的解析式;
(2)将函数
的图象向右平移
个单位,再所得图象上各点的横坐标缩小为原来的
,纵坐标不变,得到函数
的图象,求
的单调递增区间;
(3)在(2)的条件下,若
在
上恰有奇数个零点,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fcd4082d14e5a26c6fccf782576856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acd2d5f345bc859faaf9edc1036a6c7.png)
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(1)请填写上表的空格处,并写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7ca334d2ae1289b70941e6af9e336a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91609d305f182620aff2f5d85cc7e17f.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecdb2704ea6bc44b5a75fb3c8a100353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3810fc5221a4e2e7095f945bb4a2e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
2 . 已知数列
满足:
,
,其中
为数列
的前n项和.
(1)求数列
的通项公式;
(2)设m为正整数,若存在首项为1且公比为正数的等比数列
(
),对任意正整数k,当
时,都有
成立,求m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b11b53600b5f8795438b5071251fe32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(2)设m为正整数,若存在首项为1且公比为正数的等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3d686e972baa72df81389555897acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41075383e3b80a1ac8faf5edec08f620.png)
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3 . 已知椭圆
,
分别是椭圆的左、右焦点,
是椭圆上的动点,直线
交椭圆于另一点
,直线
交椭圆于另一点
.
(1)求
面积的最大值;
(2)求
与
面积之比的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0b4bbfa0ed04cd3c2454d99d64e29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246482388ea686b373fc1ad3e18347be.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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4 . 已知函数
,若对于任意的实数
都能构成三角形的三条边长,则称函数
为
上的“完美三角形函数”.
(1)记
在
上的最大值、最小值分别为
,试判断“
”是“
为
上的“完美三角形函数”的什么条件?不需要证明;
(2)设向量
,若函数
为
上的“完美三角形函数”,求实数
的取值范围;
(3)已知函数
为
(
为正的实常数)上的“完美三角形函数”.函数
的图象上,是否存在不同的三个点
,它们在以
轴为实轴,
轴为虚轴的复平面上所对应的复数分别为
,满足
,且
?若存在,请求出相应的复数
,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7942abede925d39586071ad73e8c7de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237d8cd9bc612b6417614fbd70ee6c57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b95e62946d710707f89d0c9f82c7ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d02d5fbfa2feb617c6fabd1c35c5fb5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1cf43aad35a9c6360908448b348be1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138ddbc9e4e842267a38425141063cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42017367e7f9fc70f99d70551852d6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2537912dc33dfc76ea1afa48c5d9e261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbc272e8a634e515c14f52bd64e84b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9246032f3154df10f63e03fef7ec5eb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be94c746ea0cb4834e5295672e229a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2374bf53f7afc6eac3cf45d2befef826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a328844e8b5643eeda51d02c53bf248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be94c746ea0cb4834e5295672e229a4.png)
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解题方法
5 . 在平面直角坐标系中,过直线
上任一点
作该直线的垂线
,
,线段
的中垂线与直线
交于点
.
(1)当
在直线
上运动时,求点
的轨迹
的方程;
(2)过
向圆
引两条切线,与轨迹
的另一个交点分别![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cd04dbee03d604f6750dc47b671c34.png)
①判断:直线
与圆
的位置关系,并说明理由;
②求
周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e74c95ccefde2639966cdb1b39978de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfa5a9df5f910d30aff0af1aab6b4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c2798e02ba8ee263dc4a64968a559c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cd04dbee03d604f6750dc47b671c34.png)
①判断:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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6 . 已知函数
.
(1)记函数
,求函数
的极大值点;
(2)记函数
,讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dca3edf674aae74c0e2cdb6cbff08b8.png)
(1)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e4a4bc63eb2d670eca32bb563945c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b426608a06477f57cb994f4d00e4465d.png)
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解题方法
7 . 已知点
分别为椭圆
的左、右焦点,过
的直线l(斜率不为0)交椭圆C于P,Q两点,当直线l的斜率不存在时,
.
(1)求椭圆C的离心率;
(2)若点A,B分别为椭圆C的左、右顶点,且
面积的最大值为
,直线
与直线
相交于点M,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dc791ae552024ea0df7905bf190f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c0dd8f44d5c72757b1ad1318800d6.png)
(1)求椭圆C的离心率;
(2)若点A,B分别为椭圆C的左、右顶点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3d833dad7bda8887fdfcaf00bb4c49.png)
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解题方法
8 . 已知函数
,将
的图像上所有点的横坐标变为原来的2倍,再向左平移
个单位长度,最后再把所有点的纵坐标伸长到原来的3倍,得到函数
的图象.
(1)求函数
的单调递增区间,并写出函数
的解析式;
(2)关于
的方程
在
内有两个不同的解
;
①求实数
的取值范围;
②用
的代数式表示
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7ecff5c4200875c7655e505c57a103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7317f1f5bf19007cbf9bf46d1e4bcac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e13623a74057edba789cff4ba85c5fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146b7c16d81ccb92aef1e1f1788f00f.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7241924141a25c43d7cd8288ddfd8501.png)
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9 . 已知定点
,动点N在直线
上,过点N作l的垂线,该垂线与NF的垂直平分线交于点T,记点T的轨迹为曲线C.
(1)求曲线C的方程;
(2)已知点P、A、B是曲线C上的点,且
.
(i)若点P的坐标为
,则动直线AB是否过定点?如果过定点,请求出定点坐标,反之,请说明理由;
(ii)若
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42502a5730e1930d77d7100d1e34707.png)
(1)求曲线C的方程;
(2)已知点P、A、B是曲线C上的点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
(i)若点P的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7334402b0f5f606a82d027208e3e2c.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81529452eb2cb8578fd164db9e957ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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解题方法
10 . 如图,设
中角A,B,C所对的边分别为a,b,c,D为
的中点,已知
,
的面积为
.
,求
的值;
(2)点E,F分别为边
,
上的动点,线段
交
于点
,且
,
(
为锐角),记
的面积为
,有
,求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6cd1b78e09a35e20dff5d1265a85905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4f3da376bd01ef33579e6eecc6f047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf2d39a965604b748811d9dff1cfdb8.png)
(2)点E,F分别为边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce0c71a3a1d58e20a0b72ac1be907db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a50d3b893c9eb00791c230f99c5721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb20805c9db0cfd86e1297b8e06f505.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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