* Finding equations of the lines

* How to graph Rational Functions


* How to graph Trignometry Functions (You need to download Quick time player.)
* Music and Math

* Tricks For Memorizing The Unit Circle Chart


* A Trick to Remember Values on The Unit Circle

* 7.2 Addition and Subtraction Formulas


* 7.4 Inverse Trigonometric Functions (You need to watch both.)




* 7.5 Solving Trigonometric Equations



* Solving Inconsistent Systems

* Vector

*Geometric Series