已知圆C:x^2+y^2+2x-4y+3=0.(1)若C的切线在x轴和y轴上的截距相等,求此切线的方程.(2)从c外一点P(x1,x2)向该圆引一条切线,切点为M,O为坐标原点,且有/PM/=/PQ/,求使得/PM/去的最小值的点P的坐标.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 12:39:00
![已知圆C:x^2+y^2+2x-4y+3=0.(1)若C的切线在x轴和y轴上的截距相等,求此切线的方程.(2)从c外一点P(x1,x2)向该圆引一条切线,切点为M,O为坐标原点,且有/PM/=/PQ/,求使得/PM/去的最小值的点P的坐标.](/uploads/image/z/1623899-11-9.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86C%EF%BC%9Ax%5E2%2By%5E2%2B2x-4y%2B3%3D0.%EF%BC%881%EF%BC%89%E8%8B%A5C%E7%9A%84%E5%88%87%E7%BA%BF%E5%9C%A8x%E8%BD%B4%E5%92%8Cy%E8%BD%B4%E4%B8%8A%E7%9A%84%E6%88%AA%E8%B7%9D%E7%9B%B8%E7%AD%89%2C%E6%B1%82%E6%AD%A4%E5%88%87%E7%BA%BF%E7%9A%84%E6%96%B9%E7%A8%8B.%EF%BC%882%EF%BC%89%E4%BB%8Ec%E5%A4%96%E4%B8%80%E7%82%B9P%EF%BC%88x1%2Cx2%29%E5%90%91%E8%AF%A5%E5%9C%86%E5%BC%95%E4%B8%80%E6%9D%A1%E5%88%87%E7%BA%BF%2C%E5%88%87%E7%82%B9%E4%B8%BAM%2CO%E4%B8%BA%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9%2C%E4%B8%94%E6%9C%89%2FPM%2F%3D%2FPQ%2F%2C%E6%B1%82%E4%BD%BF%E5%BE%97%2FPM%2F%E5%8E%BB%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E7%9A%84%E7%82%B9P%E7%9A%84%E5%9D%90%E6%A0%87.)
xTMO@+9&\8GsUHG!@>PP
-Qh!N_[Bgv`AުJ=$}W{|Fc/+B~NfsBLΌ-S[%olSvq{;f'c^xGa˽*ηsuʃWk -kfn.{UuPKm:IqўsRc0vkiTRRԒvo@h.7B`3̪gt\
Do/v\ʩY]@avX:Q~^G5̝g-:6X(_ALPBY9DU(:xD."ݢu
ͺ(Ts%DDG-hY
3DUB ^KIK`DIC3T6FeXuO8DMUs̚Bp8/.6<4L,cH,YUX(sA=xTBu02]Pd&(0O}x"<ʟ.w