Given the vectors u = <−3,7> and v = <5,1>, find -½ u.
A. <-1,-4>
B. <-4,-1>
C. <3/2,-7/2>
D. <-3/2,7/2>
a scalar multiple just distributes as in a complex number: a(x+yi) = ax+ayi
(1/2)<-3,7> = <(1/2)(-3),(1/2)(7)>
A. <-1,-4>
B. <-4,-1>
C. <3/2,-7/2>
D. <-3/2,7/2>
(1/2)<-3,7> = <(1/2)(-3),(1/2)(7)>