This study guide is part of an interdisciplinary curriculum entitled the Science and Engineering Technician (SET) Curriculum designed with the objective of training technicians in the use of electronic instruments and their applications. The curriculum integrates elements from the disciplines of chemistry, physics, mathematics, mechanical technology, and electronic technology. This guide provides that part of the mathematics content related to algebraic and trigonometric equations and their applications. The following topics are included: (1) linear equations in two unknowns; (2) trigonometric equations and vectors; (3) systems of linear equations; (4) quadratic equations; (5) complex numbers-imaginary roots of quadratic equations; (6) equations containing fractions; and (7) exponential and logarithmic equations. (Author/SK)