Question

me ajudem pfv 20 pontos
1) Resolva as seguintes operações com números complexos .

a) ( 3 – 2i ) – ( 1 + 3i ) =

b) ( 4 + 5i ) + ( 2 + 6i ) =



c) ( 3 – 2i ) + ( 5 – 5i ) =



d) ( 4 + 5i ) – ( 2 + 6i ) =



e) ( 3 + 2i ) + ( 5 + 7i ) =



f) ( 5 + 3i ) . ( 2 + 4i ) =



g) ( 8 – 2i ) . ( 4 + 5i ) =



h) ( 8 + 3i ) . ( 8 - 3i ) =

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Answer 1

Resposta:

Explicação passo-a-passo:

a) 3 - 2i - 1 -3i = 2 - 5i

b) 4 + 5i + 2 + 6i = 6 + 11i

c) 3 - 2i + 5 - 5i = 8 - 7i

d) 4 + 5i - 2 - 6i = 2 - i

e) 3 + 2i + 5 + 7i = 8 + 9i

f) (5 + 3i)(2+4i) = 10 + 20i + 6i + 12$i^{2}$ = 10 - 12 + 26i = -2 + 26i

g)( 8 – 2i )( 4 + 5i ) = 32 + 40i - 8i - 10$i^{2}$ = 32 + 10 + 32i = 42 + 32i

h)( 8 + 3i )( 8 - 3i ) = 64 -24i + 24i + 9 = 73