Vector a Overscript right-arrow EndScripts has a magnitude of 5.20 m and is directed east. Vector b Overscript right-arrow EndScripts has a magnitude of 3.70 m and is directed 36.0° west of north. What are (a) the magnitude and (b) the direction (counterclockwise from east) of a Overscript right-arrow EndScripts plus b Overscript right-arrow EndScripts? What are (c) the magnitude and (d) the direction (counterclockwise from east) of b Overscript right-arrow EndScripts minus a Overscript right-arrow EndScripts?