Phrases Īnother method is to expand the letters into a sentence, such as 'Some Old Horses Chew Apples Happily Throughout Old Age', 'Some Old Hippy Caught Another Hippy Tripping On Acid', or 'Studying Our Homework Can Always Help To Obtain Achievement'. ˌ s oʊ k ə ˈ t oʊ ə/ SOH-kə- TOH-ə, similar to Krakatoa). One way to remember the letters is to sound them out phonetically (i.e. Sine = Opposite ÷ Hypotenuse Cosine = Adjacent ÷ Hypotenuse Tangent = Opposite ÷ Adjacent The sine, cosine, and tangent ratios in a right triangle can be remembered by representing them as strings of letters, for instance SOH-CAH-TOA in English: SOH-CAH-TOA Image mnemonic to help remember the ratios of sides of a right triangle In trigonometry, it is common to use mnemonics to help remember trigonometric identities and the relationships between the various trigonometric functions.
