This series covers essential subjects in Trigonometry and Pre-Calculus with exceptional clarity so that students will feel well prepared to move onto Calculus and Physics. What sets this series apart from other Trigonometry teaching tools is that the concepts are taught entirely through step-by-step example problems of increasing difficulty. It works by introducing each new concept in an easy to understand way and using example problems that are worked out step-by-step and line-by-line to completion. Learn how to solve equations that involve logarithms and exponential functions. The ability of a log to cancel an exponential and vice versa is used to isolate the variable in question and solve the equations. Teachers User Instruction & Resource Guide - Includes Recommended books & Trigonometry Websites.