Question

The gradient of one of the lines {{x}^{2}}+hxy+2{{y}^{2}}=0
is twice that of the other, then h = [MP PET 1996]
A) \pm \,3 B) \pm \,\frac{3}{2} C) \pm \,2 D) \pm \,1

Answer 1

the answer to that question is C