kat-alpha-jest-ostry-i-displaystyle-sinalpha-frac23-wtedy

$\displaystyle \frac{1}{9}$\displaystyle \frac{1}{9}

$\displaystyle \frac{2}{9}$\displaystyle \frac{2}{9}

$\displaystyle \frac{4}{9}$\displaystyle \frac{4}{9}

$\displaystyle \frac{5}{9}$\displaystyle \frac{5}{9}