The slopes of the lines given by 12x^(2)...

The slopes of the lines given by `12x^(2) + bxy - y^(2) = 0` differ by 7. Then the value of b is

A

2

B

`pm 2`

C

`pm 1`

D

1

Verified by Experts

The correct Answer is:

C

`pm1`

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