z^3=1000-900i+270ii-27iii
Пошаговое объяснение:
z^3=(10-3i)*(10-3i)*(10-3i)
z^2=10(10-3i)-3i(10-3i)=(100-30i)-(30i-9ii)=100-60i+9ii
z^3=10(100-60i+9ii)-3i(100-60i+9ii)=(1000-600i+90ii)-(300i-180ii+27iii)=1000-900i+270ii-27iii
z^3=1000-900i+270ii-27iii
Пошаговое объяснение:
z^3=(10-3i)*(10-3i)*(10-3i)
z^2=10(10-3i)-3i(10-3i)=(100-30i)-(30i-9ii)=100-60i+9ii
z^3=10(100-60i+9ii)-3i(100-60i+9ii)=(1000-600i+90ii)-(300i-180ii+27iii)=1000-900i+270ii-27iii
z^3=1000-900i+270ii-27iii