Question

The tangent drawn to the ellipse at tge parametric point ∆ where ∆=tan^-1 meets the auxiliary circle at P & Q and PQ subtends right angle at the centre of the ellipse .The eccentricity is ::

Answer 1

The tangent drawn to the ellipse at tge parametric point ∆ where ∆=tan^-1 meets the auxiliary circle at P & Q and PQ subtends right angle at the centre of the ellipse .The eccentricity is ::