If one of the two lines 6x^(2)+xy-y^(2)=...

If one of the two lines `6x^(2)+xy-y^(2)=0` coincides with one of the
two lines `3x^(2)-axy+y^(2)=0` then

A

(a) `1/2`

B

(b) `1`

C

(c) 2

D

(d) 4

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The correct Answer is:

A

NA

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