The video begins by defining the basic trigonometric functions: sine, cosine, and tangent. You’ll learn how these functions relate to the ratios of sides in a right triangle and how to use them to ...

Given a function f(x), and two points on the curve (a, f(a)) and (b, f(b)) the line joining these two points is called a secant line of f. (Not to be confused with the trigonometric secant (sec) ...