Ответ: 11-3i
Решение:
(8-3i) + (5+4i) = (8 + 5) + (-3 + 4)·i = 13+i
(13+i) + (-2-4i) = (13 + (-2)) + (1 + (-4))·i = 11-3i
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Ответ: 11-3i
Решение:
(8-3i) + (5+4i) = (8 + 5) + (-3 + 4)·i = 13+i
(13+i) + (-2-4i) = (13 + (-2)) + (1 + (-4))·i = 11-3i