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[Post New]2 May 2008 17:46:24 IST
    Subject: FIND ANGLE?
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VINEET_IIT_JEE (10)

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Olaaa!! Perrrfect answer. 2  [2 rates]
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THE EQUATION OF NORMAL AT ? ON THE ELLIPSE x2/a2+y2/b2=1 IS ax/cos?-by/sin?=a2-b2.IF THE NORMALS AT ?r (r=1,2,3) ON THE ELLIPSE ARE CONCURRENT AT


(h,k) AND IF z=cos?r+isin?r ,THEN (a2-b2)z4-2(ah-bk)z3+2(ah+ibk)z-(a2-b2) IS EQUAL TO WHAT???


 
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