trigonometric

The other trigonometric proofs of the theorem that have appeared in the past include a few that are described on mathematician Alexander Bogomolny’s website.

The mnemonic SO-CAH-TOA is commonly used to teach trigonometric functions sine, cosine and tangent.

The Los Angeles Times reported that the teacher was in math class and the video showed her "chanting a mnemonic device—"Sohcahtoa," often used in math courses to remember trigonometric functions."

This confounds many people who remember high school mathematics as rife with formulas to memorize—the trigonometric identities come to mind.

In another, an object that appears to be moving fast is shown to be actually moving much more slowly when a relevant trigonometric calculation is applied.