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Getting Quadratic and Cubic with Astroid (Posted on 2011-10-22) Difficulty: 2 of 5
The respective lengths of the perpendiculars drawn from the origin to the tangent and to the normal of the astroid x2/3 + y2/3 = a2/3 are denoted by F and G.

Determine all possible real a that satisfy this relationship:

4*F2 + G2 = a3 18.

See The Solution Submitted by K Sengupta    
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re: Solution Comment 2 of 2 |
(In reply to Solution by Harry)

Ty, Harry.

I confirm having incorporated your methodology in my solution.

  Posted by K Sengupta on 2012-03-21 09:53:05

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