Answer
(a) $-v= (-2,0,-1)$
(b)$2v= (4,0,2)$
(c) $\frac{1}{2}v= (1,0,\frac{1}{2})$
Work Step by Step
Let $v$ be given by $v=(2,0,1)$, now we have
(a) $-v=-(2,0,1)=(-2,0,-1)$
(b)$2v=2(2,0,1)=(4,0,2)$
(c) $\frac{1}{2}v=\frac{1}{2}(2,0,1)=(1,0,\frac{1}{2})$
