kat-alpha-jest-ostry-i-displaystyle-tgalphasqrt2-wtedy-sinalpha-jest

$\displaystyle \frac{\sqrt{2}}{2}$\displaystyle \frac{\sqrt{2}}{2}

$\displaystyle \frac{\sqrt{6}}{3}$\displaystyle \frac{\sqrt{6}}{3}

$\displaystyle \frac{\sqrt{3}}{2}$\displaystyle \frac{\sqrt{3}}{2}

$\displaystyle \frac{\sqrt{2}}{3}$\displaystyle \frac{\sqrt{2}}{3}