Flag Analytical Geometry> If the circles x2+y2-8x+2y+8=0 and x2+y2-...
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If the circles x2+y2-8x+2y+8=0 and x2+y2-2x-6y-a2=0 have exactly two common tangents, then prove that 2

Pawan joshi , 6 Years ago
Grade 12th pass
anser 2 Answers
Deepak Kumar Shringi

Last Activity: 6 Years ago

incomplete question but you can solve it by
c1c2=r1+r2

kkbisht

Last Activity: 6 Years ago

Dear deepak ,
                    My qustions is what exactly you need to prove ?The definition and equation of two  circles is ok but what the student wants to prove that is not clear.
Please specify  that. I will answer any thing you want to ask but specify clearly?

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