Answer
$(5, 315^\circ)$
= $3.536 - 3.536i$
Work Step by Step
$(5, 315^\circ)$ is equivalent to $5cis315^\circ$
$5cis315^\circ$
= $5(cos315^\circ + isin315^\circ)$
= $5(\frac{\sqrt{2}}{2} - \frac{\sqrt{2}}{2}i)$
= $3.536 - 3.536i$
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