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2014-02-14T03:41:03-02:00
(1-i)² = (1-i) . (1-i)

1.1 - 1.i - 1.i  +i²

1 - 2i + i²      ( i² = - 1)

1 - 2i + ( -1)

-2i


(1-i)²  = -2i
2 3 2
2014-02-14T07:31:52-02:00
(1-i)^2
1^2 - 2.1.i + i^2
1-2i+i^2
1 5 1