Question

Разность z2-z1 комплексных чисел z1=5-3i и z2=-2+7i равна 1) - 7-10i 2) 7+10i 3) - 7+10i 4) - 7+4i

Answer 1

Ответ:

Пошаговое объяснение:

z2-z1=-2+7i -(5-3i)=-2+7i -5+3i=-7+10i

Answer 2

To find the difference between two complex numbers, simply subtract their real and imaginary parts separately. Let's calculate the difference between z2 and z1:

z1 = 5 - 3i z2 = -2 + 7i

Now, subtract z1 from z2:

z2 - z1 = (-2 + 7i) - (5 - 3i)

To subtract complex numbers, distribute the negative sign:

z2 - z1 = -2 + 7i - 5 + 3i

Combine like terms:

z2 - z1 = (-2 - 5) + (7i + 3i) z2 - z1 = -7 + 10i

So, the difference between z2 and z1 is: -7 + 10i

The correct answer is 3) - 7 + 10i.