The two lines `x=ay+b, z=cy+d and x=a'y+b', z=c'y+d'` are perpendicular to each other, if

The two lines x=ay+b,z=cy+d and x=a'y+b', z=c'y +d' are pendicular to each other if

The two lines x=ay+b,z=cy+d and x=a'y+b', z=c'y +d' are pendicular to each other if

If the lines x=ay +b, z=cy+d and x=a'y + b', z=c'y + d' are perpendicular, then

Prove that if the lines x = ay + b, z = cy + d and x = a'y + b', z = c'y + d' are perpendiclar to each other aa' + cc' + 1 = 0.

Two lines in 3-D are x=ay+b,z=cy+d and x=a^'z+b',y=c'x+d' are perpendicular to each other then which of the following condition is true? (a) aa'+c+c'=0 (b) c c'+a+a'=0 (c) aa'+c c'=0 (d) a a'+c c'+1=0

The two lines x=ay+b, z=cy+d and x=a'y+b', z=c'y+d will be perpendicular ,if and only if

If lines x=ay+b, z= cy +d " and " x=a' z+b y=c' z+ d' are perpendicular then

Prove that the lines x = ay + b, z = cy + d and x = a'y + b' , z= c'y + d' are perpendicular, if a a' + c c' + 1=0

The two lines x=ay+b,z=cy+d and x=a'y+b',z=c'y+d' will be perpendicularm if and only if