名校
1 . 在平面直角坐标系中,直线
被圆
所截得的弦长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68bf6129c00da09b17a33fa23d598d1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2 . 已知圆
,直线
,若圆
上到直线
的距离为
的点的个数为
,则
的可能取值共有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9ab11ba6b230c4309e1b899eb58daae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68911fb3b632caca8749329884fc405a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 【选修4-1:几何证明选讲】
![](https://img.xkw.com/dksih/QBM/2017/9/28/1783842664185856/1783942361972736/STEM/1044fd209da844d4be7390ba219d64ae.png?resizew=236)
如图,
的外接圆的切线AE与BC的延长线相交于点E,∠BAC的平分线与BC相交于点D,求证:
(1)EA=ED;
(2)
.
![](https://img.xkw.com/dksih/QBM/2017/9/28/1783842664185856/1783942361972736/STEM/1044fd209da844d4be7390ba219d64ae.png?resizew=236)
如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
(1)EA=ED;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57cc3a14320beb884f03069e0b84fbbd.png)
您最近一年使用:0次
10-11高二下·海南·期末
4 . 如图,锐角三角形ABC中,以BC为直径的半圆分别交AB、AC于点D、E,则△ADE与△ABC的面积之比为
![](https://img.xkw.com/dksih/QBM/2014/12/2/1571908314890240/1571908320280576/STEM/947f4e7e58ec42f2831e1a436e813735.png)
![](https://img.xkw.com/dksih/QBM/2014/12/2/1571908314890240/1571908320280576/STEM/947f4e7e58ec42f2831e1a436e813735.png)
A.cosA | B.sinA | C.sin2A | D.cos2A |
您最近一年使用:0次
2018高三·全国·专题练习
名校
5 . 已知函数
,若方程
恰有三个实数根,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96ee975cd32e42962d574dcc23daab5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe68aa8a21f26b6b9f6889369aa5905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-03-17更新
|
660次组卷
|
3卷引用:2-8 函数与方程(高效训练)-2019版导学教程一轮复习数学(人教版)
(已下线)2-8 函数与方程(高效训练)-2019版导学教程一轮复习数学(人教版)2017届福建省宁德市高三第一次(3月)质量检查数学理试卷山西省应县第一中学校2018-2019学年高二下学期期末考试数学(理)试题
6 . (选修4-1:几何证明选讲)在圆O中,AB,CD是互相平行的两条弦,直线AE与圆O相切于点A,且与CD的延长线交于点E,求证:AD2=AB·ED.
![](https://img.xkw.com/dksih/QBM/2017/6/1/1699409391165440/1699652214628352/STEM/9743b396f71848a6950fd9e471ee5b55.png?resizew=239)
您最近一年使用:0次
7 . [选修41:几何证明选讲]
如图,点
,
,
,
在圆
上,
,
的延长线交于点
,
,
交于点
,且
.若
,
,求
的长.
如图,点
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8946331b0a9d86e1a9c78797f3021455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0213c5787a5a6b38d11bceca5567f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a09b1c4a3c2ec5f0ac0f3a6e5c4c90b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52423e252340d1fb40096c726db184e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac943d8c2eb91c0082ada87857d1ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a679040c4d556723e482bacbab41356d.png)
![](https://img.xkw.com/dksih/QBM/2017/5/27/1695796686774272/1695906734931968/STEM/cc7f9691ee8c4a87b3ceef658e23a6a6.png?resizew=182)
您最近一年使用:0次
8 . 选修4-1:几何证明选讲
如图,圆
的弦
,
交于点
,且
为弧
的中点,点
在弧
上,若
,求
的度数.
如图,圆
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/d46d298355c243d3a7a8412f453f83f7.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/3a0e79dafd1b4f8e8146fe621ca33d5e.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/c0c88cf8b5c548b6b11ecbd6d1daced3.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/5b4a94ef9d75436b80316a5a553a7b1f.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/fbf70c5e154245a0906278a54c3d6b44.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/c0c88cf8b5c548b6b11ecbd6d1daced3.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/ea407b4ac3a34eecad587167d3772764.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/1f53cdfb3c254e8bb7a04a31219f7119.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/1627ef95ace442d180c71fd3df456954.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/b4ce5d0d5fbc4afc9a8eaa749b9ab14f.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2017/5/6/1681346041446400/1681863787274240/STEM/d1790d35121b4e42a7a055a727b34aa8.png?resizew=162)
您最近一年使用:0次
9 . [选修41:几何证明选讲]
如图,圆
的弦
,
交于点
,且
为弧
的中点,点
在弧
上.若
,求
的度数.
如图,圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f6e483598bba7f3fafc18d8f9f1c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ff1350bd72625328c85c3097cd85e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/26407114-1dfd-4a00-ba45-0735eb9418d8.png?resizew=142)
您最近一年使用:0次
名校
10 . 在平面直角坐标系中,将曲线
上的每一个点的横坐标保持不变,纵坐标缩短为原来的
,得到曲线
,以坐标原点
为极点,
轴的正半轴为极轴,建立极坐标系,
的极坐标方程为
.
(1)求曲线
的参数方程;
(2)过原点
且关于
轴对称的两条直线
与
分别交曲线
于
和
,且点
在第一象限,当四边形
周长最大时,求直线
的普通方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f917a2022014d9c19c29eeac84c74e2f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f90eb172dbd2ff7ae6f705801c0737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
2017-04-15更新
|
1238次组卷
|
7卷引用:2017届河北省石家庄市高三一模考试(文科)数学试卷