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2010-01-15T08:38:38+01:00
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(81/625)^(-0,75)=(81:625)^(-0,75)=81^(-0,75) : 625^(-0,75) =

=(3^4)^(-0,75) : (5^4)^(-0,75) = 3^(-3) : 5^(-3) = 27^(-1) : 125^(-1) =

= 1/27 : 1/125 = 1/27 * 125 = 125/27 = 4 i 17/27



(81/625)^(-0,75)=[(3/5)^4]^(-0,75) = (3/5)^(-3) = (5/3)^3 = 125/27 = 4 i 17/27



(8/27)^(-4/3) = [(2/3)^3)^(-4/3) = (2/3)^(-4) = (3/2)^4 = 81/16 = 5 i 1/16

(8/27)^(-4/3) = (pierwiastek stopnia 3 z liczby 8/27)^(-4) = (2/3)^(-4) =
= (3/2)^4 = 81/16 = 5 i 1/16



9^(-3/2) = (1/9)^(3/2) = (pierwiastek z 1/9)^3 = (1/3)^3 = 1/27

9^(-3/2) = (3^2)^(-3/2) = 3^(-3) = (1/3)^3 = 1/27