If a circle cuts rectangles hyperbola xy = 1 in the point (xi, yi), i = 1, 2, 3

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Question

If a circle cuts rectangles hyperbola xy = 1 in the point (xi, yi), i = 1, 2, 3, 4 then

Options:

A . x1x2x3x4 = 0

B . y1y2y3y4 = 1

C . y1y2y3y4 = 0

D . x1x2x3x4 = -1

Answer: Option B

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