Math 128 - Plane Trigonometry
Spring 2025

Syllabus

Link to Online Textbook


Announcements:
 - As voted on in class, Exam 2 will now be given on Friday, March 28.  It will cover material from Chapter 9 and Sections 10.1 and 10.2.
 - As discussed in class, Quiz 2 will be given on Friday, March 14 on trigonometric identities.  You will need to know the formulas for the addition and subtraction identities for sin and cos, double-angle identities for sin and cos, reduction of powers identities for sin and cos, and half-angle identities for sin and cos.  Additionally, you should still know the reciprocal, quotient, and Pythagorean identities from earlier in the course.



Homework Assignments
 All homework is to be completed online at MyOpenMath.com.  You can find all weekly assignments and due dates there.

Old Announcements:
- As discussed in class, Quiz 1 will be given on Friday, January 31, and it will be on the values of sin, cos, and tan of the angles π/6, π/4, and π/3.  You must know these 9 ratios without a calculator, and you must get all 9 correct to get full credit on the quiz.  If you not get full credit on the quiz, you will get the opportunity to retake the quiz at a later date for half credit.
  - As announced by email, Exam 1 will now be given on Monday, February 17.  It will cover material from Chapter 7 and Chapter 8.  You should bring a scientific calculator to use, but no graphing calculators will be permitted, and no notes or books will be permitted.