EAMCET Engineering 2003 Solved Paper
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Question : 99 of 160
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If the pair of straight lines given by A x 2 + 2 H x y + B y 2 = 0 ( H 2 > A B ) forms an equilateral triangle with line a x + b y + c = 0 , then ( A + 3 B ) ( 3 A + B ) is equal to :
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