1. Liczba 2^-3:(1/4)^ 2,1 kreska ułamkowa 8 ^2/5 jest równa???
odpowiedzi to :
A.1 B.2^-6 C.2^-7,4 D.2^-8,4
daje naj :)
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2^-3/(1/4)^2,1/8^2/5=(1/3)^3/[(1/4)^2.1/2^6/5=2^-3/2^-4.2/2^6/5=2^1.2/2^1.2=2^0=1