Question

СКОЛЬКО РАВНО, СКАЖИТЕ ПЖ

Answer 1

$( frac{1}{9} ) {}^{2} + ( frac{2}{3} ) {}^{3} = frac{1}{81} + frac{8}{27} = frac{1 + 24}{81} = frac{25}{81} \ ( frac{5}{9} ) {}^{2} - ( frac{1}{3} ) {}^{2} = frac{25}{81} - frac{1}{9} = frac{25 - 9}{81} = frac{16}{81}$