Anonymous wrote:Is precalculus trigonometry? I don’t remember taking it in HS many years ago.
Among other topics, yes.
From the course bulletin:
"Precalculus completes the formal study of the elementary functions begun in Algebra 1 and Algebra 2. Students focus on the use of technology, modeling, and problem solving. Functions studied include polynomial, exponential, logarithmic, rational, radical, piece-wise, and trigonometric and circular functions and their inverses. Parametric equations, vectors, and infinite sequences and series are also studied."