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(81 do potęgi 0,5*9 do potęgi-2)to wszystko do potęgi -1/4
(81 do potęgi 0,5*9 do potęgi-2)to wszystko do potęgi -1/4 = [(9²)¹/² * 9 ⁻²] ⁻¹/⁴ = (9¹ * 9⁻²)⁻¹/⁴ = (9⁻¹)⁻¹/⁴ = 9¹/⁴
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(81 do potęgi 0,5*9 do potęgi-2)to wszystko do potęgi -1/4 = [(9²)¹/² * 9 ⁻²] ⁻¹/⁴ = (9¹ * 9⁻²)⁻¹/⁴ = (9⁻¹)⁻¹/⁴ = 9¹/⁴