过圆外一点求圆的两条切线方程圆是:(X-2)^2 +(Y-4)^2 = 25点是:(-1,3)原题是圆过A:(3,2) B:(1,6) 圆心y=2x上圆是我自己求的,是我求错了?第一问是求圆方程,第二问就是求过(-1,3)的切线了
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/20 09:35:53
![过圆外一点求圆的两条切线方程圆是:(X-2)^2 +(Y-4)^2 = 25点是:(-1,3)原题是圆过A:(3,2) B:(1,6) 圆心y=2x上圆是我自己求的,是我求错了?第一问是求圆方程,第二问就是求过(-1,3)的切线了](/uploads/image/z/4624528-40-8.jpg?t=%E8%BF%87%E5%9C%86%E5%A4%96%E4%B8%80%E7%82%B9%E6%B1%82%E5%9C%86%E7%9A%84%E4%B8%A4%E6%9D%A1%E5%88%87%E7%BA%BF%E6%96%B9%E7%A8%8B%E5%9C%86%E6%98%AF%EF%BC%9A%28X-2%29%5E2+%2B%28Y-4%29%5E2+%3D+25%E7%82%B9%E6%98%AF%EF%BC%9A%28-1%2C3%EF%BC%89%E5%8E%9F%E9%A2%98%E6%98%AF%E5%9C%86%E8%BF%87A%3A%283%2C2%29+B%3A%281%2C6%29+%E5%9C%86%E5%BF%83y%EF%BC%9D2x%E4%B8%8A%E5%9C%86%E6%98%AF%E6%88%91%E8%87%AA%E5%B7%B1%E6%B1%82%E7%9A%84%EF%BC%8C%E6%98%AF%E6%88%91%E6%B1%82%E9%94%99%E4%BA%86%EF%BC%9F%E7%AC%AC%E4%B8%80%E9%97%AE%E6%98%AF%E6%B1%82%E5%9C%86%E6%96%B9%E7%A8%8B%EF%BC%8C%E7%AC%AC%E4%BA%8C%E9%97%AE%E5%B0%B1%E6%98%AF%E6%B1%82%E8%BF%87%EF%BC%88-1%EF%BC%8C3%EF%BC%89%E7%9A%84%E5%88%87%E7%BA%BF%E4%BA%86)
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