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A circle of radius 'r' is concentric with the ellipse x2a2+y2b2=1. Then inclination of common tangent with major axis is ___ (b<r<a)

Answer» A circle of radius 'r' is concentric with the ellipse x2a2+y2b2=1. Then inclination of common tangent with major axis is ___ (b<r<a)


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