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(29A) The Unit Circle
Find the exact value of:
$\cos 45°$
$\sin 210°$
$\sin 60°$
$\sin 240°$
$\sin 180°$
$\cos 0°$
$\cos 120°$
$\cos 225°$
$\sin 30°$
$\sin 270°$
$\sin 0°$
$\sin 315°$
$\sin 90°$
$\tan 45°$
$\sin 135°$
$\cos 180°$
$\sin 120°$
$\sin 45°$
$\cos 150°$
$\cos 330°$