Question

please answer correctly high points will be given​

Answer 1

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$\tt{magnitude \: of \: resultant \: vector,} \\ \\ \tt{ R = \sqrt{ {A}^{2} + {B}^{2} + 2ABcos\theta}} \\ \\ \tt{direction \: of \: resultant \: vector} \\ \\ \tt{tan \alpha = \frac{Asin \theta}{B + Acos\theta} }$