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Grade 11Analytical Geometry

Find the equation of family of circles which touch the pair of straight lines : x^2+y^2+2y-1=0

Profile image of Karthik Eyan
15 Years agoGrade 11
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1 Answer

Profile image of Chetan Mandayam Nayakar
15 Years ago

x2+y2+2y-1=0,thus (x-0)2+(y+1)2=2

this is a circle,not a pair of straight lines