Urči součin komplexního čísla:
\( z_{5}=(\sqrt{6}+6 i)(9+i \sqrt{3}) \)
\( z_{5}=(9 \sqrt{6}+6 \sqrt{3})+(3 \sqrt{2}+54) \mathrm{i} \)
\( z_{5}=(9 \sqrt{6}-6 \sqrt{3})+(3 \sqrt{2}+45) \mathrm{i} \)
\( z_{5}=(9 \sqrt{6}-6 \sqrt{3})+(3 \sqrt{2}-54) \mathrm{i} \)
\( z_{5}=(9 \sqrt{6}-6 \sqrt{3})+(3 \sqrt{2}+54) \mathrm{i} \)
