The tangent on ellipse meets the auxillary circle at points which subtend right angle at the centre. Find eccentricity 

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  • 56

Hey... if the tangent were to be drawn at the end point of the major axis of the ellipse, that would touch the auxiliary circle at one point, i.e., in a limiting condition, you would see that the points subtend 0 angle at the centre... so, this condition is impossible...

Check if it is the director circle or not...

  • -11
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