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The joint equation of pair of lines havi...

The joint equation of pair of lines having slopes 1 and 3 and passing throught the origin is

A

`4x^2-3xy-y^2=0`

B

`3x^2-4xy+y^2=0`

C

`3x^2-4xy-y^2=0`

D

`3x^2=y^2`

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The correct Answer is:
B
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