Answer
$<2, -3, 2>$
$<2, -11, 4>$
$<6, -23, 9.5>$
Work Step by Step
The question asks for the vectors $ u + v$, $u - v$, and $3u - 0.5 v$
Given $u = <2, -7, 3>$ and $v = <0, 4, -1>$
$u + v = <2 + 0, -7 + 4, 3 + (-1)> = <2, -3, 2>$
$u - v = <2 - 0, -7 - 4, 3 - (-1)> = <2, -11, 4>$
$3u - 0.5v = 3<2, -7, 3> - 0.5 <0, 4, -1>$
$= <6 - 0, -21 - 2, 9 - (-0.5)> = <6, -23, 9.5>$
