If one of the lines given by the equation \( a x^{2}+6 x y+ \) \( b y^{2}=0 \) bisects the angle....

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If one of the lines given by the equation \( a x^{2}+6 x y+ \) \( b y^{2}=0 \) bisects the angle between the co-ordinate
P
axes, then value of \( (a+b) \) can be:
W.
(1) -6
(2) 3
(3) 6
(4) 12



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