JEE Main 2019 Mathematics question
If a unit vector makes angles π/3 with , π/4 with and θ ∈ (0, π) with , then a value of θ is:
Answer: (D)
Solution
⇒ θ = π/3 or 2π/3.
If a unit vector makes angles π/3 with , π/4 with and θ ∈ (0, π) with , then a value of θ is:
⇒ θ = π/3 or 2π/3.