Let there are two forces, namely 'A' and 'B', having angle between them equal to 'θ'. If the resultant of these forces is given by 'R', then the direction of this 'R' with respect to force 'A' is given by:
1
\(\tan \alpha=\frac{A+B \sin θ}{B \cos θ}\)
2
\(\tan \alpha=\frac{B \sin θ}{A+B \cos θ}\)
3
\(\tan \alpha=\frac{A \cos θ}{A+B \sin θ}\)
4
\(\tan \alpha=\frac{A \cos θ}{A-B \sin θ}\)
5
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