JEE Main 2019 Mathematics question
Let , and be coplanar vectors. Then the non-zero vector is:
Answer: (B)
Solution
Coplanarity: (λ − 2)(λ − 9) = 0; , non-zero for λ = 2.
Let , and be coplanar vectors. Then the non-zero vector is:
Coplanarity: (λ − 2)(λ − 9) = 0; , non-zero for λ = 2.