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

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

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

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

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

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 perpendicular to each other, if

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