1 . 在直角坐标系
中,已知点
,
,动点
满足直线
与
的斜率之积为
.记
的轨迹为曲线
.以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)求
和
的直角坐标方程;
(2)求
上的点到
距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311497849126f1aaf1da0ec75602eabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b47e7bf02b3ca16f7d96b9369e51a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7ee7dce82929e9f332573b6f30e23f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2 . 选修4—4:坐标系与参数方程
在平面直角坐标系
中,圆
的参数方程为
(
为参数),直线
经过点
,倾斜角
.
(1)写出圆
的标准方程和直线
的参数方程;
(2)设直线
与圆
相交于
,
两点,求
的值.
在平面直角坐标系
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/eb32a2d6650c4858bc2aa14b93e7d8b0.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/b6332c17b66d4229ba5a5e523e8043fe.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/68e32327d85e440b894e4edd083337c7.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/b0399e1639fe4ccc9d72fa39ad3e1126.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/d374f2e8d3064312a296f394d81b65d4.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/7261e4c5207640559b381d0d87df9cfe.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/e7217adc03094d809b3575769ede66a7.png)
(1)写出圆
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/b6332c17b66d4229ba5a5e523e8043fe.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/d374f2e8d3064312a296f394d81b65d4.png)
(2)设直线
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/d374f2e8d3064312a296f394d81b65d4.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/b6332c17b66d4229ba5a5e523e8043fe.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/522185dc966a45bf9cacccab2946b4ab.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/0f58341da7904bcd8c8d2a68de5900b8.png)
![](https://img.xkw.com/dksih/QBM/2015/3/31/1572056380186624/1572056385626112/STEM/1f0b0a87476b4308921cf811f635bb87.png)
您最近一年使用:0次
2016-12-03更新
|
911次组卷
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2卷引用:2015届辽宁省沈阳市高中三年级教学质量监测一理科数学试卷