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cat e 1+2 la puterea 7:(2 la puterea 7+1)?​

Răspuns :

[tex]1 + {2}^{7} \div ( {2}^{7} + 1) \: = 1 + \frac{ {2}^{7} }{ {2}^{7} + 1 } = 1 + \frac{128}{128 + 1} = \frac{128}{129} = \frac{257}{129} [/tex]