The Trig You Need for Calculus: Graphs of the Trig Functions

A calculus student must know the graphs of the sine, cosine, and tangent functions and their principal domains. The principal domain for each function is a designated interval on the x-axis over which the function is 1-1. This interval is the range of the corresponding inverse trig function. The graphs for sin, cos, and tan over their principal domain intervals appear below.

sin cos