Duvida questão de matemática (números complexos) 10 Pontos!?
1_Determine o valor de (-1+5i/2+3i)² alguem sabe? vlw
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1_Determine o valor de (-1+5i/2+3i)² alguem sabe? vlw
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Ola Paulo
((-1+5i)/(2+3i))² =
(-1+5i)*(2-3i)/(2+3i)*(2-3i) =
(-2+3i+10i+15)/(4+9) =
(13+13i)/13 = 1 + i
(1 + i)² = 1 + 2i - 1 = 2i
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