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A variable line moves in such a way that the product of the perpendicular from (4,0) and (0,0) is equal to 9. The locus of the feet of the perpendicular from (0,0) upon the variable line is a circle, the square of whose radius is
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Question 1
The ellipse is inscribed in a rectangle aligned with the coordinate axes, which in turn is inscribed in another ellipse that passes through the point (4, 0). Then the equation of the ellipse isQuestion 2
The eccentricity of an ellipse whose centre is at the origin is if one of its directrices is then the equation of the normal to it at is:(2) (3) (4) Question Text | A variable line moves in such a way that the product of the perpendicular from (4,0) and (0,0) is equal to 9. The locus of the feet of the perpendicular from (0,0) upon the variable line is a circle, the square of whose radius is |