Question

Va rog dau coroana rapid!!!

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Answer 1

Răspuns:

17,4(592)

Explicație pas cu pas:

$\Big[8,7 - 5,(3)\Big] \cdot 4,(8) + {\Big(2 : 7 + \frac{5}{7}\Big)}^{2002} =$

$= \Big(\frac{87}{10} - \frac{53 - 5}{9} \Big) \cdot \frac{48 - 4}{9} + {\Big( \frac{2}{7} + \frac{5}{7}\Big)}^{2002}$

$= \Big(\frac{87}{10} - \frac{48}{9} \Big) \cdot \frac{44}{9} + {\Big( \frac{7}{7}\Big)}^{2002}$

$= \Big(\frac{^{3)} 87}{10} - \frac{^{10)}16}{3} \Big) \cdot \frac{44}{9} + {1}^{2002}$

$= \frac{3 \cdot 87 - 10 \cdot 16}{30} \cdot \frac{44}{9} + 1$

$= \frac{101}{30} \cdot \frac{44}{9} + 1 = \frac{4444 + 270}{270}$

$= \frac{4714}{270} = \bf 17,4(592)$