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The ends of a rod of length l move on two mutually perpendicular lines. The locus of the point on the rod which divides

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The ends of a rod of length l move on two mutually perpendicular lines. The locus of the point on the rod which divides it in the ratio 1 : 2 is

(a) 36x2 + 9y2 = l2 

(b) 36x2 + 9y2 = 4l2 

(c) 9x2 + 36y2 = 4l2

(d) None of these

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Correct Option (c) 9x2 + 36y2 = 4l2

Explanation:

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