Question

решите плиз срочно прошу

Answer 1

z₁+z₂=3-6i+3+i=(3+3)+(-6+1)i=6-5i
z₁-z₂=(3-6i)-(3+i)=(3-3)+(-6-1)i=0-7i=-7i
z₁z₂=(3-6i)(3+i)=9+3i-18i-6i²=9-15i+6=15-15i
z₁/z₂=(3-6i)/(3+i)=(3×3-6×1)/(3²+1²)+(-6×3-3×1)/(3²+1²)i=3/10-21i/10=0.3-2.1i