Вычислите $\frac{7^5 * (7^4)^2}{(7^5)^3}$
$\frac{7^5 * (7^4)^2}{(7^5)^3} = \frac{7^5 * 7^8}{7^{15}} = \frac{7^{13}}{7^{15}} = \frac{1}{7^2} = \frac{1}{49}$
