Halliday, Resnick & Walker — Vectors: Problem 22

22 (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? \[ \vec{E}: 6.00 \text{ m at } +0.900 \text{ rad} \] \[ \vec{F}: 5.00 \text{ m at } -75.0^\circ \] \[ \vec{G}: 4.00 \text{ m at } +1.20 \text{ rad} \] \[ \vec{H}: 6.00 \text{ m at } -210^\circ \]