A vector a in the xy-plane has a length of 7 units and points in a direction that is 120° counterclockwise from the posi
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A vector a in the xy-plane has a length of 7 units and points in a direction that is 120° counterclockwise from the posi
A vector a in the xy-plane has a length of 7 units and points in a direction that is 120° counterclockwise from the positive x-axis, and a vector b in that plane has a length of 5 units and points in the positive y-direction. Find a bu NOTE: Enter the exact answer or round the exact answer to two decimal places. a b
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