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If the pair of lines ax^2+2(a+b)xy+by^2=...

If the pair of lines `ax^2+2(a+b)xy+by^2=0` lie long diameters of a circle and divide the circle into four sectots such that the area of one of the sector is thirce the area of the another sector , then

A

`3a^(2)+2ab+3b^(2)=0`

B

`3a^(2)+10ab+3b^(2)=0`

C

`3a^(2)-2ab+3b^(2)=0`

D

`3a^(2)-10ab+3b^(2)=0`

Text Solution

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The correct Answer is:
A
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