58. We choose +xeast and +ynorth and measure all angles in the “standard” way (positive ones counterclockwise from +x, negative ones clockwise). Thus, vector Gd1has magnitude d1= 3.66 (with the unit meter and three significant figures assumed) and directionθ1= 90°. Also, Gd2has magnitude d2= 1.83 and direction 2= –45°, and vector Gd3has magnitude d3= 0.91 and direction 3= –135°. We add the xand ycomponents,
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