Given two circles
C1 : x^2 + y^2 +8x -2y -12 = 0 and
C2 : x^2 + y^2 -12x +6y +16 =0
a. Show that the circles are tangent to each other
b. Find their point of conact
c. Find the equation of their common tangent through the point of contact
收錄日期: 2021-04-14 20:12:47
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