Question

Сократите дробь 25^n-5^2n-1/5^2n

Answer 1

$frac{25^n-5^{2n-1} }{5^{2n} }$ = $frac{5^{2n-1}(5-1) }{5^{2n} }$ = $frac{4}{5}$
Ответ: $frac{4}{5}$