The lines x cos α + y sin α = p1 and x cos' (β + y sin β = p2 will be perpendicular if

Question

The lines x cos α + y sin α = p1 and x cos' (β + y sin β = p2 will be perpendicular if (A) α=β (B) |α-β|=(pi/2) (C) α=(pi/2) (D) α ± β = (pi/2)

Tardigrade Admin · Accepted Answer

Correct answer is (b) |α-β|=(pi/2)

Q. The lines $x cos α + y s in α = p_{1} an d x co s^{'} (β + ys in β = p_{2}$ will be perpendicular if