Let a, b and c be distinct positive numbers. If the vectors a i +a j +c k , i + k and c i +c j +b k are...

Question

Let a, b and c be distinct positive numbers. If the vectors a i +a j +c k , i + k and c i +c j +b k are co-planar, then c is equal to :

Accepted Answer

(A)

JEE Main 2021 Mathematics question