Usually the general unit circle gives the values of sin sine function and cos cosine function. We will cover the basic notation relationship between the trig functions the right triangle definition of the trig functions. Soh Cah Toa And Pythagorean Theorem Evaluating Algebraic Expressions Algebraic Expressions Pythagorean Theorem We construct angles BOA alpha and AOP beta as shown. . Here is a set of practice problems to accompany the Indefinite Integrals section of the Integrals chapter of the notes for Paul Dawkins Calculus I course at Lamar University. These values can be used to compute the unit circle with tangent by using the relation between tan sin and cos which is tan x sin x. In this section we will give a quick review of trig functions. Next we drop a. We will also cover evaluation of trig functions as well as the unit circle one of the most important ideas from a trig class and how it can be used to evaluate tr...