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anadelmiro
@anadelmiro
October 2020
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Sabendo que x = 1- √5; y = √5 -1:
a) x² = (1 - √5)² = 1 - √25 = 1 - 5 = -4 (correto?)
b) (√5 - 1)² = √25 -1 = 5 - 1 = 4 (correto?)
c) esse eu não consegui fazer: x . y = ? Fiz a distributiva e depois me atrapalhei.
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