Rozwiąż:
2⁻²/³ = (½)²/³ = ∛(½)² = ∛ ¼
2^-2/3 = (1/2)^2/3 = ³√(1/2)^2 = ³√(1/4) =1/³√4 * ³√16/³√16=³√16/³√64=³√16/4=³√(8*2)/4=2³√2/4 = ³√2/2
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2⁻²/³ = (½)²/³ = ∛(½)² = ∛ ¼
2^-2/3 = (1/2)^2/3 = ³√(1/2)^2 = ³√(1/4) =1/³√4 * ³√16/³√16=³√16/³√64=³√16/4=³√(8*2)/4=2³√2/4 = ³√2/2