Answer
$\lt 1,-4 \gt$
Work Step by Step
Suppose two vectors $A$ and $B$ .
and, a vector $p$ can be found as:
$p=B-A=\lt 2,-1 \gt -\lt 1,3 \gt =\lt 2-1,-1-3 \gt$
or, $=\lt 1,-4 \gt$
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