Question

ПОМОГИТЕ РЕШИТЬ КОМПЛЕКСНЫЕ ЧИСЛА. Очень прошу помогите

Answer 1

(-4-3i) + (1+3i) = (-4+1)+(-3i+3i) = -3+0=3
(-4i-3i) - (1+3i) = (-4-1) + (-3i -3i) = -5 -6i
(-4-3i)(1+3i) = -4 - 3i - 12i -9i² = -4 -15i +9 = 5 - 15i
$frac{(-4-3i)(1-3i)}{(1+3i)(1-3i)}= frac{-4-3i+12i+9i^2}{1^2-9i^2}= frac{-4+9i-9}{1+9}= frac{-13+9i}{10}=-1.3+0.9i$