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Dheyniffer
@Dheyniffer
November 2019
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me ajude galeria nessa questão
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A)(2/3)^-2 = 1:(2/3)^2 = 1:(4/9) = 1*9/4 = 9/4 = 2,25
b)(5/4)^-2 = 1:(5/4)^2 = 1:(25/16) = 1*16/25 = 16/25 = 0,64
c)(-1/4)^-3 = 1:(-1/4)^3 = 1*64/-1 = 64/-1 = -64
d)5^-3 = 1:5^3 = 1/125 = 0,008
e)(-4/8))^2 = (-1/2)^2 = 0,25
É isso haha ;)
2 votes
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Lista de comentários
b)(5/4)^-2 = 1:(5/4)^2 = 1:(25/16) = 1*16/25 = 16/25 = 0,64
c)(-1/4)^-3 = 1:(-1/4)^3 = 1*64/-1 = 64/-1 = -64
d)5^-3 = 1:5^3 = 1/125 = 0,008
e)(-4/8))^2 = (-1/2)^2 = 0,25
É isso haha ;)