If the pair of lines \( a x^{2}+2(a+b) x y+b y^{2}=0 \) lie long P ...

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If the pair of lines \( a x^{2}+2(a+b) x y+b y^{2}=0 \) lie long
P diameters of a circle and divide the circle into four sectors such that the area of one of the sector is thrice
W the area of the another sector, then
(a) \( 3 a^{2}+2 a b+3 b^{2}=0 \)
(b) \( 3 a^{2}+10 a b+3 b^{2}=0 \)
(c) \( 3 a^{2}-2 a b+3 b^{2}=0 \)
(d) \( 3 a^{2}-10 a b+3 b^{2}=0 \)
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