名校
1 . 已知双曲线
,则
的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ee700ae61a7ca6dd3881ed05ea34d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-08-23更新
|
646次组卷
|
4卷引用:吉林省长春市实验中学2019-2020学年高二上学期10月月考数学(文)试题
10-11高二下·黑龙江牡丹江·期末
2 . 在
中,
是斜边上的高线,
则
为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b28ef176d78867a81ac621c62e341b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91acc65064f9b4ce4520cac292a84a11.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 如图所示,
内接于圆O,
是
的中点,∠
的平分线分别交
和圆
于点
,
.
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932940955648/1572932947156992/STEM/6debfcf0aa7b4c77b9ff787cac4f2033.png)
(Ⅰ)求证:
是
外接圆的切线;
(Ⅱ)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df6b72cbe1f6b402d5835dda1de3701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb49d869110f27140f5c1934143db2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2016/7/22/1572932940955648/1572932947156992/STEM/6debfcf0aa7b4c77b9ff787cac4f2033.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73d6dde62cacc0d1fc589d3f1565304.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe2ad465f0bd58356b12da8fa72483a.png)
您最近一年使用:0次
2016-12-04更新
|
125次组卷
|
3卷引用:2016届吉林省毓文中学高三高考热身考试理科数学试卷
4 . 选修4—1:几何证明选讲.
已知
中,
,以点
为圆心,以
为半径的圆分别交
,
于两
,
两点,且
为该圆的直径.
![](https://img.xkw.com/dksih/QBM/2015/11/4/1572277999034368/1572278005284864/STEM/0bb40102b5504416ad6c4519a76f1fc7.png)
(1)求证:
;
(2)若
.求
的长.
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://img.xkw.com/dksih/QBM/2015/11/4/1572277999034368/1572278005284864/STEM/0bb40102b5504416ad6c4519a76f1fc7.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a833abd966f18b1d2ecb99288ace95.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5792bcbca4586e65f257e937a012cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
5 . 选修4-1:几何证明选讲
如图,圆周角
的平分线与圆交于点
,过点
的切线与弦
的延长线交于点
,
交
于点
.
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572273014292480/1572273020624896/STEM/250ee19ea09e4222bacc8433628290df.png)
(1)求证:
;
(2)若
,
,
,
四点共圆,且
,求
.
如图,圆周角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e57541260bfadf7624c86769eec0fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9febb0e53890d2fb72fdfd7f0aa88acc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ebbd866e455cf80ea669c9f56f792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b693717f525facc79b9a500ed998b109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588a2119bc5e8cdf4731828b195a7892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://img.xkw.com/dksih/QBM/2015/10/28/1572273014292480/1572273020624896/STEM/250ee19ea09e4222bacc8433628290df.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa9132693acc1c5c9f9b50445cf98e2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ebbd866e455cf80ea669c9f56f792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2391c0e2fc44598610d519dacb778062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14da8b9947feb556eb2669fcb6ba6277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e57541260bfadf7624c86769eec0fc1.png)
您最近一年使用:0次
2016-12-04更新
|
90次组卷
|
3卷引用:2016届吉林省实验中学高三上学期第一次模拟理科数学试卷1
6 . 选修4-1:几何证明选讲
圆
是以
为直径的圆,延长
与
交于
点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/0af4c3ca-0cdd-4590-b9fa-8c30228df30a.png?resizew=183)
(Ⅰ)求证:
是圆
的切线;
(Ⅱ)
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5762def25feb1ab47465e2d629a8cd.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/13/0af4c3ca-0cdd-4590-b9fa-8c30228df30a.png?resizew=183)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(Ⅱ)
![](https://img.xkw.com/dksih/QBM/2016/7/12/1572913900216320/1572913906786304/STEM/5587f10125244c48927f92d3b4c46728.png)
![](https://img.xkw.com/dksih/QBM/2016/7/12/1572913900216320/1572913906786304/STEM/56db4f8204bd4e78afc69c77d0c6d2f3.png)
您最近一年使用:0次
2016-12-04更新
|
114次组卷
|
2卷引用:2016届吉林省毓文中学高三高考热身考试文科数学试卷
2010·吉林·二模
7 . 如图,已知⊙O和⊙M相交于A、B两点,AD为⊙M的直径,直线BD交⊙O于点C,点G为
中点,连结AG分别交⊙O、BD于点E、F连结CE.
(1)求证:
;
(2)求证:![](https://img.xkw.com/dksih/QBM/2012/1/11/1570685661339648/1570685666787328/STEM/f10f4538e7b141708014cb5f7bfac446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c5ebc2d5455ceb341d5796acdf63fd.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2012/1/11/1570685661339648/1570685666787328/STEM/b35cd86fac924045b3b40ba44021f9fa.png)
(2)求证:
![](https://img.xkw.com/dksih/QBM/2012/1/11/1570685661339648/1570685666787328/STEM/f10f4538e7b141708014cb5f7bfac446.png)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1570685661339648/1570685666787328/STEM/2a6e16d685044044a925a5b080d9318e.png)
您最近一年使用:0次
12-13高三上·河北衡水·期末
8 . 已知C点在圆O直径BE的延长线上,CA切圆O于A点, DC是∠ACB的平分线交AE于点F,交AB于D点.
![](https://img.xkw.com/dksih/QBM/2014/12/3/1571913545302016/1571913551282176/STEM/3461746b38d540a586df1e7db06b0745.png)
(Ⅰ)求
的度数.
(Ⅱ)若AB=AC,求AC:BC.
![](https://img.xkw.com/dksih/QBM/2014/12/3/1571913545302016/1571913551282176/STEM/3461746b38d540a586df1e7db06b0745.png)
(Ⅰ)求
![](https://img.xkw.com/dksih/QBM/2014/12/3/1571913545302016/1571913551282176/STEM/17521d29a6c9445cb24193b60134489c.png)
(Ⅱ)若AB=AC,求AC:BC.
您最近一年使用:0次
9 . 如图△ABC内接于⊙O,且AB=AC,过点A的直线交⊙O于点P,交BC的延长线于点D.
![](https://img.xkw.com/dksih/QBM/2015/10/23/1572263394385920/1572263400136704/STEM/4debd78c7624452cb857d433c652255b.png)
(Ⅰ)求证:AC2=AP•AD;
(Ⅱ)若∠ABC=60°,⊙O的半径为1,且P为弧AC的中点,求AD的长.
![](https://img.xkw.com/dksih/QBM/2015/10/23/1572263394385920/1572263400136704/STEM/4debd78c7624452cb857d433c652255b.png)
(Ⅰ)求证:AC2=AP•AD;
(Ⅱ)若∠ABC=60°,⊙O的半径为1,且P为弧AC的中点,求AD的长.
您最近一年使用:0次
10 . 选修4-1:几何证明选讲
等腰梯形
中,
交于点
,
平分
,
为梯形
外接圆的切线,交
的延长线于点
.
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/bc647ba43ce24124abd172df2f327d6b.png)
(1)求证:
;
(2)若
,求
的长.
等腰梯形
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/f87f8ce281314143b2f7925012e269ef.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/adde49d59fd54682a8512dba899f0379.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/2edd074a647e4ac2874b0a1fe3c4a0cc.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/eb8b1a339c1c4972940ea9e9a27328be.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/b3f0b6effa704cf895da65fe31831531.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/f7bde344a3a34af9858c69838dee63e2.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/f87f8ce281314143b2f7925012e269ef.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/ac548ac058ec43958b3ab02a0f7d1819.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/bd4dfc26af874686812c59e76f3376f7.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/bc647ba43ce24124abd172df2f327d6b.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/4e6a1344ee1047189e01392a71029b18.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/2032ceab14194f4d81ba81d9ba995bde.png)
![](https://img.xkw.com/dksih/QBM/2016/8/8/1572962663391232/1572962669928448/STEM/4b16f75cd27f44f986f8eb2e511efb3a.png)
您最近一年使用:0次