Mnemonic

=__Mnemonic__=

The most commonly used mnemonic would be  (Big Foot Auntie) where by:

TOA: Tangent = Opposite ÷ Adjacent CAH: Cosine = Adjacent ÷ Hypothenuse SOH: Sine= Opposite ÷ Hypothenuse

or you can use a phrase like "**S**ome **O**fficers **H**ave **C**urly **A**uburn **H**air **T**ill **O**ld **A**ge"