If x^2 + 9y^2 + 25z^2 = xyz ( 15 x + 5 y + 3 z ) then x, y, z are in

JEE Advanced Mathematics question

If then are in

Answer: (C)

The right side is . Put : then , , , and the equation becomes

+ + - XY - YZ - ZX = 0 (X- + (Y-

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Question ID VK-107775