Solution to #15 from Review Packet:

This week we have been working on proving trigonometric identities and other problems involving them. The homework this week was hw #15 and #16 on the hw sheet. They were both in the GPC book. In class we practiced doing proofs and we also learned new methods to solve problems and to think about them. We also have a test next week on Friday 3/29 on proving the trig identities and on everything having to do with trig and inverse trig functions

Click here to view the solutions to the "Levels" of Trig Equations packet

Click here to view the solutions to the Review Packet/Stations

Proofs from class today:

Identities from p.466 in Blue 4B book:

Examples of Simplifying Trig Expressions using Identities (3/13/13):

Notes on the Pythagorean Identity (3/12/13):

Click here for the COMPLETED "Cut & Paste" graph packet

Today in class we were introduced to Cosecant, Secant, and Cotangent.

The homework is numbers 9 and 10 from the homework sheet.

Today in class we continued review for tomorrow's quiz.
The homework for tonight is to study for tomorrow's quiz.

For the quiz, you need to know:

• How to graph a tangent function (5 points)
• Graph the 3 inverse trig functions (5 points) and answer domain and range questions about them, why they make sense, and what the axes represent.
• You will need to know how to solve linear trig equations
• Primary solution and what it means
• All solutions on given interval
• Find an expression for all solutions
• Be able to deal with happy and unhappy numbers
• Be able to use the graphs to find these values
• Solve Tangent equations

Today in class we worked on more problems from the packet we received on Friday.

Homework: Get ready for the quiz on Wednesday!

Essential Questions: (of last week) How do we graph the inverse trig. functions? How do we solve linear trig. equations?

Thursday  February 28th and Friday the 29th:
In Class: We went over examples of solving cosine and sine inverse functions. We learned that the primary solution is the number given by the calculator because it is the solution on the inverse function. Then we looked at all solutions on [0, 2pi]. We learned it was helpful to draw the graph and then locate the solutions on there. Finally, we learned how to find all solutions (adding the period*n to the primary and secondary solutions). During class we talked about course selections as well.
Homework: Thursday: gold packet p.583 #12, p.585 #3. And the writing assignment was due on Friday.
Friday: Finish the first three problems of the practice problems packet we were given.  

Click here for solutions to the Trig Equations Link Sheets