Q.
2
A. mx2 + (m2 - 1)xy - my2 = 0
B. mx2 - (m2 - 1)xy - my2 = 0
C. mx2 - (m2 - 1)xy - my2 = 0
D. mx2 + (m2 + 1)xy - my2 = 0
E. None of the above
Correct choice: A
Explanation: