Vector vector A has a magnitude of 9.10 units and makes an angle of 54.0 with the positive x-axis. Vector vector B also has a magnitude of 8.00 units...

Vector vector A has a magnitude of 9.10 units and makes an angle of 54.0° with the positive x-axis. Vector vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the following.