The angle between lines `xcos alpha +ysin alpha =p_1 ,` and `xcos beta+ysin beta=p_2,` where `alpha > beta` is

The angle between lines x cos alpha+y sin alpha=p_(1), and x cos beta+y sin beta=p_(2), where alpha>beta is

The angle between the lines x cos alpha+y sin alpha=p_(1) and x cos beta +y sin beta=p_(2) where alpha gt beta is

The angle between the lines x cos alpha + y sin alpha=p_(1) and x cos beta+y sin beta=p_(2) where alpha gt beta is

The angle between the lines x cos alpha+y sin alpha=p_(1) and x cos beta+y sin beta=p_(2) when alpha>beta

The lines x cos alpha + y sin alpha = p_1 and x cos beta + y sin beta = p_2 will be perpendicular, if :

The lines x cos alpha + y sin alpha = P_1 and x cos beta + y sin beta = P_2 will be perpendicular, if :

The lines x cos alpha + y sin alpha = P_1 and x cos beta + y sin beta = P_2 will be perpendicular, if :

The lines x cos alpha + y sin alpha = P_1 and x cos beta + y sin beta = P_2 will be perpendicular, if :

The lines x cos alpha + y sin alpha = P_1 and x cos beta + y sin beta = P_2 will be perpendicular, if :

The angle between the lines xcos alpha_1+ysin alpha_1=p_1 and xcos alpha_2+ysin alpha_2=p_2 is (A)    |alpha_1+alpha_2|     (B)    |alpha_1-alpha_2|     (C)    |2alpha_1|     (D)    |2alpha_2|