Let a, b, c be three distinct real numbers, none equal to one. If the vectors a i + j + k , i +b j + k and i...

Question

Let a, b, c be three distinct real numbers, none equal to one. If the vectors a i + j + k , i +b j + k and i + j +c k are coplanar, then 1 1-a + 1 1-b + 1 1-c is equal to

Accepted Answer

(D)

JEE Main 2023 Mathematics question

Solution