Answer
$\vec{a}-\vec{b}= [(5.0m)]\hat{i}+[(-4.0m)]\hat{j}+[(-3.0m)]\hat{k}$
Work Step by Step
We subtract the two vectors to obtain:
$\vec{a}-\vec{b}$=
$=[(4.0m)-(-1.0m)]\hat{i}+[(-3.0m)-(1.0m)]\hat{j}+[(1.0m)-(4.0m)]\hat{k}$
$= [(5.0m)]\hat{i}+[(-4.0m)]\hat{j}+[(-3.0m)]\hat{k}$