Chapter 3, Problem 22P

(a) What is the sum of the following four vectors in unit-vector notation? For that sum, what are (b) the magnitude, (c) the angle in degrees, and (d) the angle in radians?

$\begin{array}{cc}\begin{array}{l}\stackrel{\to }{E}\text{: 6}.00\text{ m at }+0.\text{9}00\text{ rad}\\ \stackrel{\to }{G}\text{: 4}.00\text{ m at }+\text{1}.\text{2}0\text{ rad}\end{array}& \begin{array}{l}\stackrel{\to }{F}\text{: 5}.00\text{ m at }-\text{75}.0°\\ \stackrel{\to }{H}\text{: 6}.00\text{ m at }-\text{21}0°\end{array}\end{array}$