1 . 过点
,
的直线的斜率为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50723cfe72c92ca76ffd13af62d4a363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17dc5c14f112c2b97f4804aad23e0f3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,在四棱锥
中,平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
平面
,BC//平面PAD,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404fc19da3e4da41e9147e9f0ca64957.png)
,
.
![](https://img.xkw.com/dksih/QBM/2018/12/5/2090404214185984/2094345209585664/STEM/6c177e387a3e4574aace4c3b4ae715ec.png?resizew=209)
求证:(1)
平面
;
(2)平面
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404fc19da3e4da41e9147e9f0ca64957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c73f29a8f7f886cd1c277ba469869d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42061a2cdc0652dbc39d72ef1bc0f58b.png)
![](https://img.xkw.com/dksih/QBM/2018/12/5/2090404214185984/2094345209585664/STEM/6c177e387a3e4574aace4c3b4ae715ec.png?resizew=209)
求证:(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810ee7bc82b6f452afb3fc18691abc3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a3fd5284e160896f07ce367645fd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
2017-11-15更新
|
833次组卷
|
3卷引用:江苏省清江中学2017-2018学年高二上学期期中考试数学试题
名校
3 . 在平面直角坐标系中,圆
与
轴的正半轴交于点
,以
为圆心的圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1753fb25e4d727d027eb6d42a784d2da.png)
与圆
交于
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/3a665e8f-8c33-4416-876d-40e05ac545f4.png?resizew=235)
(1)若直线
与圆
切于第一象限,且与坐标轴交于
,当线段
长最小时,求直线
的方程;
(2)设
是圆
上异于
的任意一点,直线
分别与
轴交于点
和
,问
是否为定值?若是,请求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1753fb25e4d727d027eb6d42a784d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/445489a1d1c2f9a53608c7121d42f02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/22/3a665e8f-8c33-4416-876d-40e05ac545f4.png?resizew=235)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c3cc1f331dbb2248b0829039df7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5c68892eb480632b5afd2e2998e8e4.png)
您最近一年使用:0次
名校
4 . 已知两点A(-1,2),B(m,3),求:
(1)直线AB的斜率k;
(2)求直线AB的方程;
(3)已知实数m∈
,求直线AB的倾斜角α的范围.
(1)直线AB的斜率k;
(2)求直线AB的方程;
(3)已知实数m∈
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ab5dd1d2cf4299a1b69d3ffbbcbf8c.png)
您最近一年使用:0次
2017-07-06更新
|
631次组卷
|
2卷引用:江苏省盐城市射阳县第二中学2016-2017学年高一下学期第一次学情调研数学试题
5 . 如图,
平面
,点
为
中点.
![](https://img.xkw.com/dksih/QBM/2017/8/20/1756238907875328/1756966715179008/STEM/1abbf9d061fd4dbe8377669efa68a8e6.png?resizew=169)
(1)求证:
;
(2)求证:
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8de9c5f81336ab1c83056aaf877f7ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://img.xkw.com/dksih/QBM/2017/8/20/1756238907875328/1756966715179008/STEM/1abbf9d061fd4dbe8377669efa68a8e6.png?resizew=169)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c583493109d50c9e4634c05e9042a9f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a04304f2d4975955d4baabb2deeea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
您最近一年使用:0次
2017-08-21更新
|
1075次组卷
|
3卷引用:江苏省泰州市2016-2017学年度第二学期期末考试高一数学统考试题
名校
6 . 如图,地图上有一竖直放置的圆形标志物,圆心为C,与地面的接触点为G.与圆形标志物在同一平面内的地面上点P处有一个观测点,且PG=50m.在观测点正前方10m处(即PD=10m)有一个高位10m(即ED=10m)的广告牌遮住了视线,因此在观测点所能看到的圆形标志的最大部分即为图中从A到F的圆弧.
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413413187584/1572413419266048/STEM/bb6afab1602440ccaca8e6b34cd71141.png?resizew=224)
(1)若圆形标志物半径为25m,以PG所在直线为X轴,G为坐标原点,建立直角坐标系,求圆C和直线PF的方程;
(2)若在点P处观测该圆形标志的最大视角(即
)的正切值为
,求该圆形标志物的半径.
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413413187584/1572413419266048/STEM/bb6afab1602440ccaca8e6b34cd71141.png?resizew=224)
(1)若圆形标志物半径为25m,以PG所在直线为X轴,G为坐标原点,建立直角坐标系,求圆C和直线PF的方程;
(2)若在点P处观测该圆形标志的最大视角(即
![](https://img.xkw.com/dksih/QBM/2016/1/4/1572413413187584/1572413419266048/STEM/1daac217907945d2b3bb040e3ed0c2be.png?resizew=48)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a61a54cef1f67f7eeab9029984cdf534.png)
您最近一年使用:0次
2016-12-03更新
|
913次组卷
|
5卷引用:江苏省南通市海安高级中学2017-2018学年高二上学期期中数学(理)试题
名校
7 . 根据下列条件,分别画出经过点P,且斜率为k的直线,并写出倾斜角:
(1)P(1,2),k=1; (2)P(-1,3),k=0;
(3)P(0,-2),k=
; (4)P(1,2),斜率不存在.
(1)P(1,2),k=1; (2)P(-1,3),k=0;
(3)P(0,-2),k=
![](https://img.xkw.com/dksih/QBM/2017/2/20/1633778794356736/1715158573867008/STEM/ddcdea0c00e5438e8f49e2d9cc4c385f.png?resizew=37)
您最近一年使用:0次
2017-06-23更新
|
513次组卷
|
4卷引用:江苏省南京师范大学附属中学2016届高三一轮同步训练:直线的斜数学试题
江苏省南京师范大学附属中学2016届高三一轮同步训练:直线的斜数学试题(已下线)【新教材精创】2.2.1+直线的点斜式方程+A基础练-人教A版高中数学选择性必修第一册(已下线)【新教材精创】2.2.2+直线的方程(第1课时)A基础练-人教B版高中数学选择性必修第一册1.3直线方程的点斜式、斜截式同步练习-2021-2022学年高二上学期数学北师大版(2019)选择性必修第一册
8 . 已知直线l的倾斜角为α,若
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654f49826f233a1f70c7089307341b9f.png)
您最近一年使用:0次
名校
9 . 已知直线l与圆C:x2+y2+2x﹣4y+a=0相交于A,B两点,弦AB的中点为M(0,1).
(1)若圆C的半径为
,求实数a的值;
(2)若弦AB的长为6,求实数a的值;
(3)当a=1时,圆O:x2+y2=2与圆C交于M,N两点,求弦MN的长.
(1)若圆C的半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(2)若弦AB的长为6,求实数a的值;
(3)当a=1时,圆O:x2+y2=2与圆C交于M,N两点,求弦MN的长.
您最近一年使用:0次
2017-11-28更新
|
663次组卷
|
3卷引用:江苏省扬州市高邮市2017-2018学年高二(上)期中数学试题
解题方法
10 . 已知圆
经过
,
两点,且圆心
在直线
上.
(1)求圆
的方程;
(2)动直线
:
过定点
,斜率为
的直线
过点
,直线
和圆
相交于
,
两点,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfac068d47233495ae90db6f2eb2de69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a03e17da1376b200864c464e79b3191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e9b738497cb8d6381e0de43d1c5ce1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次