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Exercitiul de jos. Multumesc

Exercitiul De Jos Multumesc class=

Răspuns :

Miky93
[tex]\frac{4^n *5^n*5+4^n*4+5^n}{3^n*7^n*7+ 3n^*3*7n -1}= \\ \\ = \frac{4^n*5^n(4+5)}{3^n*7^n(3+7-1)}= \\ \\ = \frac{4^n*5^n *9}{3^n*7^n*9} = \\ \\ =\boxed{\frac{4^n*5^n}{3^n*7^n}}[/tex]

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