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If the pair of lines ax^2-2xy+by^2=0 and...

If the pair of lines `ax^2-2xy+by^2=0` and bx^2-2xy+ay^2=0`
be such that each pair bisects the angle between the other pair , then |a-b| equals to

A

2

B

`-2`

C

1

D

`-1`

Text Solution

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The correct Answer is:
A,B
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