Given the Magnitude of Vectors $\mathbf{A}$ And $\mathbf{B}$ , and the Angle Between Them, Find the Magnitude of the Angle

Short Answer

Given the magnitude of vectors $\mathbf{A}$ and $\mathbf{B}$ , and the angle between them, find the magnitude of the resultant and the angle it makes with vector $\mathbf{B}: \mathbf{A}=529, \mathbf{B}=677, \theta=74.1^{\circ}$