Recent SemestersFall 2026, Spring 2026, Fall 2025, Summer 2025, Spring 2025Class Size40–45 studentsCredits3PrerequisiteSuccessful completion of Intermediate Algebra with a grade of C or better or appropriate placement M40 or M50 based on California Title 5 regulations; or students with Milestone M30 must enroll in Mathematics 104X (Mathematics 104 and Mathematics 15D learning community) Transfers ToCSUCSU GE Area B4DescriptionThis course is a study of the numerical, analytical, and geometric properties of right and oblique triangles, of trigonometric and inverse trigonometric functions, and their applications. The course content includes right angle trigonometry, radian measure, circular functions, graphs of circular functions and their inverses, trigonometric identities, equations involving trigonometric and inverse trigonometric functions, an introduction of the complex plane, vectors and their operations, and the trigonometric form of complex numbers. This course is designed as a preparation for calculus and it is intended for the transfer student planning to major in mathematics, engineering, economics, or disciplines included in the physical or life sciences.Usually HeldMon Tue Wed Thu 12:00pm–1:25pm, Mon Wed 5:00pm–6:25pm, Mon Wed 5:05pm–6:30pm, Mon Wed 6:40pm–8:05pm 