已知直线
和直线
.
(1)若
时,求a的值;
(2)当
,求两直线
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc07b4c083cb9b7deb593cb05dccb4f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea64be2f53ac4dd6df60189c22f964a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
更新时间:2023-12-20 11:04:08
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【推荐1】已知直线
和
,设a为实数,分别根据下列条件求a的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9b125524a60c2781d69d31b74b5e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a88307fd4312e76ffe67a228865341.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
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【推荐2】已知直线
和
.
(1)求经过
与
的交点且与直线
平行的直线方程;
(2)求经过
与
的交点且与圆
相切的直线l的直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9ef34827b976022ad861c5af346776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8a9ec2d314ebb4637c7590feca9c85.png)
(1)求经过
![](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/5d8038c0ae808b69f521da27ed96557a.png)
(2)求经过
![](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/08227ca941898eb34941f446ca8b1de8.png)
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【推荐1】求两条互相垂直的直线
与
的交点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb343cfed5f78a4a24f750415abef43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd7b5099fe74b9119dc25846af94f964.png)
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【推荐2】已知两点
和
.
(1)记点
关于
轴的对称点为
,求直线
的方程;
(2)求线段
的垂直平分线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36d02c9e0fecab6c546da6473d32912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18bf37fd17717a128b123595b845694.png)
(1)记点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐1】直线
,
,直线
与直线
,
的距离分别是
,
.已知
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fced2c50b7c0b5f344c5e5f90683c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4da40f2d78ae14c848c59f0c3482b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cb9100d9bf258562c0f7242fd1878b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐2】已知直线3x+(1-a)y+5=0与x-y=0平行,求a的值及两条平行线之间的距离.
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