For example , the sine , cosine , and tangent ratios in a right triangle can be remembered by representing them and their corresponding sides as strings of letters .
The sine , cosine , and tangent ratios in a right triangle can be remembered by representing them as strings of letters , such as SOH-CAH-TOA : Sine = Opposite ÷ Hypotenuse Cosine = Adjacent ÷ Hypotenuse Tangent = Opposite ÷ Adjacent or : Some Old Horse Caught A Horse Taking Oats Away or : Some Officers Have Curly Auburn Hair Till Old Age or : Stephen Opens His Car And Hits The Open Avenue