Автор - AlexeyZangShi

Найдите значение выражения (5⁴•(5•9))÷(9²•5 в седьмой степени,)

Ответ

Автор - Malinochka62

 frac{ {5}^{4} times 5 times 9 }{ {9}^{2} times  {5}^{7}  }  =  frac{ {5}^{5} times 9 }{ {5}^{7} times  {9}^{2}  } =  {5}^{5 - 7} times  {9}^{1 - 2}  =  {5}^{ - 2} times  {9}^{ - 1} =  frac{1}{ {5}^{2} times 9 } =  frac{1}{25 times 9}  =  frac{1}{225}

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