JEE Main 2013 Mathematics question

Mathematics Three Dimensional Geometry JEE Main 2013

If the lines and are coplanar, then k can have -

(1)exactly two valuesCorrect
(2)exactly three values
(3)any value
(4)exactly one value

Answer: (1)

Solution

Applying coplanarity determinant condition gives . Exactly two values.

Question ID VK-000873