Question

A) i 17 + i 18 + i 19 + i 20

B) ( 5 - 3 i ) - i 273

C) ( 2 + i ) ( 2 - i )

I 113

Answer 1

A)-

$i17 + i18 + i19 + i20 = 74i$

B)-

$(5 - 3i) - i273 = 5 - 276i$

C)-

$(2 + i)(2 - i) = 4 - {i}^{2}$

Tá aí tua resposta