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mote1985 [20]
3 years ago
15

Simplify 10 over 8-5i

Mathematics
1 answer:
LenaWriter [7]3 years ago
5 0
\frac{10}{8-5i}=\\
\frac{10}{8-5i}*\frac{8+5i}{8+5i}=\\
\frac{10*(8+5i)}{(8-5i)(8+5i)}=\\
\frac{80+50i}{64-25i^2}=\\
\frac{80+50i}{64+25}=\\
\frac{80+50i}{89}

so it is the second option
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