question_answer

If the lines represented by the equation \[6{{x}^{2}}+41xy-7{{y}^{2}}=0\] make angles \[\alpha \]and \[\beta \] with x-axis, then \[\tan \alpha .\tan \beta \]=

A)            - 6/7                                         

B)            6/ 7

C)            7/6

D)            - 7/6