Sobre as potências calcule :
A) ( + 3,2 )^2 =
B) ( - 5,1 )^2 =
C) ( -3/4 )^2 =
D) ( -1 )^101 =
A) ( + 3,2 )^2 =
B) ( - 5,1 )^2 =
C) ( -3/4 )^2 =
D) ( -1 )^101 =
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b) ( -5,1)² = -5,1 x (-5,1)= 26,01 (regra (-).(-)=+
c) (-3,4)² = (-3,4) x (- 3,4) = 11,56
d) (-1)^101 = -1 potencia impar tem o sinal da base.