一条直线经过点
.分别求出满足下列条件的直线方程.
(1)与直线
垂直;
(2)交
轴、
轴的正半轴于
,
两点,当三角形
的面积最小值时直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a5e04c5187fb20415a59ce6adeed5.png)
(1)与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fd0ef39b1061d76e79eaf71a5cf03f.png)
(2)交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
22-23高二上·江苏苏州·阶段练习 查看更多[2]
更新时间:2022-11-05 14:02:09
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适中
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解题方法
【推荐1】已知二次函数
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(1)若
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(2)解关于x的不等式
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(1)若
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(2)解关于x的不等式
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【推荐2】已知
、
是椭圆
:
的右焦点、上顶点,过原点的直线交椭圆
于
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,
.
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的标准方程;
(2)已知
为直线
上一点,过
作
的垂线交椭圆
于点
,
,当
最小时,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
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(1)求椭圆
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(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963111aff6952322dfaca75ae069873c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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【推荐1】已知抛物线
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(2)记
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解题方法
【推荐2】如图,已知平行四边形
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中,求
边上的高线所在直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/be32c71a-4fb5-4de8-8892-48268f0074eb.png?resizew=130)
(1)求平行四边形
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐1】圆
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(1)当
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【推荐2】有定点P(6,4)及定直线l:y=4x,Q是l上在第一象限内的点.PQ交x轴的正半轴于M点,问点Q在什么位置时,△OMQ的面积最小,并求出最小值.
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适中
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【推荐1】若函数
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解题方法
【推荐2】
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