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Thursday, September 29, 2011

Thursday, September 29, 2011

The notes from class:

Recap of the unit circle from Tuesday:

Finding values for sin, cos, & tan:









Knowing the quadrants and their associated +/- trig values:

* Remember the letter represents the trig function(s) that is/are positive in that quadrant.

In class questions on pg 279:





Rather than remembering a formula, let's understand what this actually means...

Red represents positive trig values and blue negative trig values.




Equations for Quiz #1:


The Ambiguous Case:

-A situation in which you are given the value of two sides, but not the angle that joins them. Thus, the unknown side can have two values depending on how it is drawn.