JEE Main 20199 Jan, Evening shiftMathematicsEasyThree Dimensional Geometry249× since 2002If the lines x = ay + b, z = cy + d and x = a'z + b', y = c'z + d' are perpendicular, then :AOption A. ab' + bc' + 1 = 0BOption B. cc' + a + a' = 0COption C. bb' + cc' + 1 = 0DOption D. aa' + c + c' = 0CheckSkip · show solution
