JEE Main 2021 Mathematics question

Mathematics Three Dimensional Geometry JEE Main 2021

The lines x = ay – 1 = z – 2 and x = 3y – 2 = bz – 2, (ab 0) are coplanar, if:

(A)b = 1, a
(B)a = 1, b Correct
(C)a = 2, b = 2
(D)a = 2, b = 3

Answer: (B)

Solution

Question ID VK-019059