Question

Спрости: ((t - n) ^ 2)/(t ^ 2 - n ^ 2)

Answer 1

Решение и ответ:

$\displaystyle \frac{{{{\left( {t-n} \right)}^2}}}{{{t^2}-{n^2}}} = \frac{{{{\left( {t-n} \right)}^2}}}{{\left( {t-n} \right)\left( {t+n} \right)}}=\frac{{t-n}}{{t+n}}$