anybody know an easy way to memorize the laws of cosine functions?

Question

anonymous · Answer

What sort of cosine functions?

anonymous · Answer

U mean sohcahtoa?

anonymous · Answer

U there?

anonymous · Answer

If you just mean the trigonometric functions, I remember SohCahToa
S: Sine- is oh, or opposite over hypotenuse.
C: Cosine- is ah, or adjacent over hypotenuse.
T: Tangent- is oa, or opposite over adjacent.

anonymous · Answer

I think he means the law of cosines.
$$c ^{2}=a ^{2}+b ^{2}-2ab \cos C$$
etc.

I say write it out many times.  Often that can aid in memorization. Also, flash cards.

anonymous · Answer

Oooh yes. You're right that's probably what he means. Remember the pythagorean theorem to start with. I don't know a good trick for remembering the last part though.

anonymous · Answer

sorry, yes i meant the law, not socatoa

anonymous · Answer

thanks simplephyiscs