在直角坐标系
中,直线l的参数方程为
(t为参数),以原点O为极点,x轴的正半轴为极轴建立极坐标系,曲线C的极坐标方程为
.
(1)求曲线C的直角坐标方程和直线l的普通方程;
(2)设曲线C与直线l交于A,B两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68239988618bc653b4d8966aa16ceb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a05632566003af07094d64db5801127.png)
(1)求曲线C的直角坐标方程和直线l的普通方程;
(2)设曲线C与直线l交于A,B两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaff41080fdea43eea7efedf9ebc1498.png)
更新时间:2022-07-13 19:51:48
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【推荐1】已知线段
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【推荐2】求与
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【推荐1】在平面直角坐标系xOy中,倾斜角为α(α≠
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【推荐2】在平面直角坐标系xOy中,圆C的参数方程为
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【推荐3】在直角坐标系
中,直线
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为参数).以原点
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的直角坐标方程;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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(1)求直线
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(2)若
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【推荐1】在直角坐标系
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(1)求
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(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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【推荐2】在直角坐标系
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(1)求曲线
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(2)求曲线
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(1)求曲线
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(2)求曲线
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【推荐3】在直角坐标系
中,直线
的参数方程为
(t为参数),以坐标原点O为极点,以x轴的非负半轴为极轴,取相同的单位长度建立极坐标系,曲线C的极坐标方程为
.
(1)写出直线
的普通方程和曲线C的直角坐标方程;
(2)已知定点
,直线
与曲线C分别交于P、Q两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c4414cdb15bce1caa186b5170097b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/290a85b2ab10c11137bcb15db5774058.png)
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)已知定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dedf1ac64f26e27291390ea91c17628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fd9c0fa54e9e15fa9df298fdb59525.png)
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