Question

8(cos 216 degrees + i sin 216 degrees)

Answer 1

$\bf 8[cos(216^o)+i~sin(216^o)]\implies 8[\stackrel{\approx}{-0.809016994}+i~\stackrel{\approx}{(-0.58778525229)}] \\\\\\ \stackrel{\approx}{-6.472135955}-\stackrel{\approx}{4.702282018~i}$