Toolkit 57

Famous Trigonometric Values

For the following important angles:

$\theta$	$\sin\theta$	$\cos\theta$	$\tan\theta$	$\cot\theta$
$0^\circ$	$0$	$1$	$0$	Undefined
$30^\circ$	$\tfrac{1}{2}$	$\tfrac{\sqrt3}{2}$	$\tfrac{\sqrt3}{3}$	$\sqrt3$
$45^\circ$	$\tfrac{\sqrt2}{2}$	$\tfrac{\sqrt2}{2}$	$1$	$1$
$60^\circ$	$\tfrac{\sqrt3}{2}$	$\tfrac{1}{2}$	$\sqrt3$	$\tfrac{\sqrt3}{3}$
$90^\circ$	$1$	$0$	Undefined	$0$
$180^\circ$	$0$	$-1$	$0$	Undefined
$270^\circ$	$-1$	$0$	Undefined	$0$

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