Vocabulary Entry

cos

|noun • conjunction

noun

A slang term for 'cosine', a trigonometric function.

Example Sentences

"In trigonometry, the cos of an angle can be calculated using the adjacent side over the hypotenuse."

"To solve the equation, we need the value of cos 30 degrees."

"The graph of the cos function is periodic and oscillates between -1 and 1."

conjunction

Example Sentences

"I didn't go to the party, cos I was feeling sick."

"She's studying hard, cos she wants to pass her exams."

"He decided to skip lunch, cos he wasn't hungry."