Question

Найдите сумму и произведение комплексных чисел
z1=7/8-1/2i; z2=1-12i

Answer 1

z1=7/8-1/2*i
z2=1-1/2*i
z1+z2=7/8-1/2*i+1-1/2*i=1 7/8-i
z1*z2=(7/8-1/2*i)(1-1/2*i)=7/8-7/16*i-1/2*i+1/4=7/8+2/8-7/16*i-8/16*i=
=1 1/8-15/16*i