Trigonometrinių funkcijų reikšmės

Kampai laipsniais	$0^\circ$	$30^\circ$	$45^\circ$	$60^\circ$	$90^\circ$	$180^\circ$	$270^\circ$	$360^\circ$
Kampai radianais	$0$	$\frac{\pi}{6}$	$\frac{\pi}{4}$	$\frac{\pi}{3}$	$\frac{\pi}{2}$	$\pi$	$\frac{3\pi}{2}$	$2\pi$
$sin \,\alpha$	$0$	$\frac{1}{2}$	$\frac{\sqrt{2}}{2}$	$\frac{\sqrt{3}}{2}$	$1$	$0$	$-1$	$0$
$cos \,\alpha$	$1$	$\frac{\sqrt{3}}{2}$	$\frac{\sqrt{2}}{2}$	$\frac{1}{2}$	$0$	$-1$	$0$	$1$
$tg \,\alpha$	$0$	$\frac{\sqrt{3}}{3}$	$1$	$\sqrt{3}$	$-$	$0$	$-$	$0$
$ctg \,\alpha$	$-$	$\sqrt{3}$	$1$	$\frac{\sqrt{3}}{3}$	$0$	$-$	$0$	$-$