Write a function to determine the resultant force vector of the two forces $,$ and applied to the bracket, where $($positive$,$ unit in degree$)$ and $($positive$,$ unit in degree$).$ Write in terms of the unit vector along the and axis. must be a vector, for example $.$ Note that is expressed in degrees. The coordinate system depicted in the figure below has the positive x$-$axis extending to the right and the positive y$-$axis extending upwards: