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(29A) The Unit Circle
Find the exact value of:
$\cos 270°$
$\sin 30°$
$\cos 120°$
$\sin 135°$
$\cos 135°$
$\cos 240°$
$\cos 60°$
$\sin 225°$
$\cos 30°$
$\sin 330°$
$\cos 225°$
$\sin 0°$
$\cos 90°$
$\sin 90°$
$\sin 150°$
$\sin 45°$
$\cos 0°$
$\sin 315°$
$\sin 300°$
$\cos 300°$