equations of circle

2008-06-23 9:21 pm
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

回答 (1)

2008-06-23 9:40 pm
✔ 最佳答案
The Q is solved as follows:

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參考: My Maths Knowledge


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