If a x^3 + b y^3 + c x^2 y + d x y^2 =0 ...

If `a x^3 + b y^3 + c x^2 y + d x y^2 =0` represents three distinct straight lines, such that each line bisects the angle between other two, then which of the following is/are correct

A

`d^(2) gt 5bc`

B

`3b+c=0`

C

`d^(2) lt 5bc`

D

`b+3c=0`

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The correct Answer is:

B

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