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Mathematics : Circles

Mathematics : Circles

by Sanyam Kapoor -
Number of replies: 1
 The number of common tangents that can be drawn to the circles
x^{2}  +Undetermined error: Undetermined error: @@y^2@@ – 4x  − 6y –3 = 0 and x^{2}  + Undetermined error: Undetermined error: @@y^2@@  + 2x + 2y + 1 = 0 is??

Thank You!
In reply to Sanyam Kapoor

Re: Mathematics : Circles

by Tanvi Mehta -
dist. between centres=5=sum of radius
Circles touch externally which means 3 common tangents.