IN this school-book of three hundred and twenty-six pages the authors have arranged a course on trigonometry which should be most useful to those studying this subject for the first time. The book may ...

In this video I will show you how to simplify trigonometric expressions by multiplying by the reciprocal, lcd and rationalizing the function. We will do this by first simplifying algebraic complex ...

Evaluate the composition of trigonometric functions by creating a right triangle. In this video we will evaluate the tangent by given the ratio for cosine. To do this we will use right triangle and ...