The equation `a^2x^2+2h(a+b)x y+b^2y^2=0` and `a x^2+2h x y+b y^2=0` represent two pairs of perpendicular straight lines two pairs of parallel straight lines two pairs of straight lines which are equally inclined to each other none of these

Options

A. two pairs of perpendicular straight lines
B. two pairs of parallel straight lines
C. two pairs of straight lines which are equally inclined to each other
D. none of these

Answer

C