$E = 30+60i$
Work Step by Step
For $E = IZ$, where $I = 8+6i$ and $Z = 6+3i$, $E = (8+6i)(6+3i)$ $= 48+24i+36i+18i^2$ $= 48+60i-18$ $(i^2=-1)$ $= 30+60i$ $E = 30+60i$
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