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[Post New] 16 Apr 2009 22:12:17 IST
   Subject: if the tangent to the ellipse x^2+4y^2=16 at the point a is normal to x^2+y^2-8x-4y=0,then a is
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Srujana (2785)

Olaaa!! Perrrfect answer. 485  [665 rates]
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Equation of the tangent to the ellipse in the parametric form is,

 

If it the normal to the circle, it passes through its centre (4,2)

 

 

 

 

 
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