NEETPhysicsMathematics in Physics
The angle between vector ( A → ) and ( A → - B → ) is :
Options
- Atan - 1 B cos θ A - B sin θ
- Btan - 1 3 B 2 A - B
- Ctan - 1 - B 2 A - B 3 2
- Dtan - 1 A 0 . 7 B
Correct answer
B. tan - 1 3 B 2 A - B
Step-by-step solution
tan ϕ = B sin 60 ° A - B cos 60 ° ϕ = tan - 1 B sin 60 ° A - B cos 60 ° = tan - 1 3 B 2 A - B