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(29A) The Unit Circle
Find the exact value of:
$\sin 210°$
$\cos 120°$
$\cos 135°$
$\cos 180°$
$\cos 225°$
$\sin 60°$
$\sin 45°$
$\sin 330°$
$\cos 30°$
$\cos 330°$
$\sin 150°$
$\cos 315°$
$\sin 30°$
$\sin 90°$
$\sin 180°$
$\tan 30°$
$\sin 315°$
$\cos 210°$
$\tan 45°$
$\cos 240°$