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OpenStudy (anonymous):
Let u = <7, -3>, v = <-9, 5>. Find 4u - 3v.
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OpenStudy (anonymous):
\[u = <7, -3>\]\[4u = <7*4, -3*4> = <28, -12>\]
OpenStudy (anonymous):
\[u = <u_x, u_y>\]\[v = <v_x, v_y>\] \[u-v = <(u_x - v_x), (u_y - v_y)>\]
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