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Impartiti puterea a patra a nr 4/9 la puterea a saptea a nr 0,(6)

Răspuns :

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[tex]( \frac{4}{9}) ^4:[0,(6)]^7= \\ \\ \frac{256}{6561}: (\frac{6}{9}^{(3})^7 = \\ \\ \frac{256}{6561}:( \frac{2}{3})^7 = \\ \\ \frac{256}{6561}: \frac{128}{2187}= \\ \\ \frac{256}{6561}* \frac{2187}{128}= \frac{2}{3} [/tex]

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