Даны два числа z1=3+2i и z2=-1+5i. Найти: z1+z2; z1-z2; z1*z2; z1:z3. Created by FWFFEAWAWRGAWEARGA. algebra-ru

Даны два числа z1=3+2i и z2=-1+5i. Найти: z1+z2; z1-z2; z1*z2; z1:z3...

July 2022 1 9 Report

Даны два числа z1=3+2i и z2=-1+5i.
Найти: z1+z2; z1-z2; z1*z2; z1:z3

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Kuкush $z_1=3+2i; z_2=-1+5i$
$z_1+z_2=3+2i-1+5i=2+7i$
$z_1-z_2=3+2i+1-5i=4-2i$
$z_1*z_2=(3+2i)*(-1+5i)=-3-10-2i+15i=-13+13i$
$z_1:z_2=(3+2i):(-1+5i)= \frac{(3+2i)*(-1-5i)}{(-1+5i)*(-1-5i)} =\frac{-3+10-17i}{1+25} = \frac{7}{26} - \frac{17}{26}i$

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