A) \[\frac{2\sin \alpha \sin \beta }{\sin \left( \beta -\alpha \right)}\]
B) \[\frac{\sin \alpha \sin \beta }{\cos \left( \beta -\alpha \right)}\]
C) \[\frac{2\sin \left( \beta -\alpha \right)}{\sin \alpha \sin \beta }\]
D) \[\frac{\cos \left( \beta -\alpha \right)}{\sin \alpha \sin \beta }\]
Correct Answer: A
Solution :
Let AB be the tower of height 'h'.You need to login to perform this action.
You will be redirected in
3 sec