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If x1,y1 " are roots of " x^2+8x-20=0, ...

If `x_1,y_1 " are roots of " x^2+8x-20=0, x_1,y_1 " are the roots of " 4x^2+32x-57=0 and x_3,y_3 " are the roots of " 9x^2+72x-112=0`, then the points `(x_1,y_1 )(x_2,y_2) and (x_3,y_3)` where `x_1 lt y_1` for i=1,2,3

A

are collinear

B

form an equitateral triangle

C

form a right angled isosceles triangle

D

are concyclic

Text Solution

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The correct Answer is:
A
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