0
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.28.28.png]](http://www.gcestudybuddy.com/_/rsrc/1314509331414/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.28.28.png)
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.29.00.png]](http://www.gcestudybuddy.com/_/rsrc/1314509352294/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.29.00.png)
Special Triangles
![[Image: rt.jpg]](http://www.gcestudybuddy.com/_/rsrc/1315286780208/using-hyperlinks/trigonometry/rt.jpg)
Trigo IdentitiesTangent and Cotangent Identities
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.30.26.png]](http://www.gcestudybuddy.com/_/rsrc/1314509464302/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.30.26.png)
Reciprocal Identities
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.31.35.png]](http://www.gcestudybuddy.com/_/rsrc/1314509506116/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.31.35.png)
Pythagorean Identities
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.32.04.png]](http://www.gcestudybuddy.com/_/rsrc/1314509535618/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.32.04.png)
Even/Odd Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.32.30.png]](http://www.gcestudybuddy.com/_/rsrc/1314509561609/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.32.30.png)
Periodic Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.32.57.png]](http://www.gcestudybuddy.com/_/rsrc/1314509589294/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.32.57.png)
Double Angle Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.33.24.png]](http://www.gcestudybuddy.com/_/rsrc/1314509613810/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.33.24.png)
Degrees to Radians Formulas
If x is an angle in degrees and t is an angle in radians then
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.33.58.png]](http://www.gcestudybuddy.com/_/rsrc/1314509648541/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.33.58.png)
Half Angle Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.34.27.png]](http://www.gcestudybuddy.com/_/rsrc/1314509678597/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.34.27.png)
Sum and Difference Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.34.55.png]](http://www.gcestudybuddy.com/_/rsrc/1314509705891/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.34.55.png)
Product to Sum Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.35.21.png]](http://www.gcestudybuddy.com/_/rsrc/1314509732926/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.35.21.png)
Sum to Product Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.35.48.png]](http://www.gcestudybuddy.com/_/rsrc/1314509760782/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.35.48.png)
Cofunction Formulas
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.36.16.png]](http://www.gcestudybuddy.com/_/rsrc/1314509787326/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.36.16.png)
Law of Sines, Cosines and Tangents
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.38.24.png]](http://www.gcestudybuddy.com/_/rsrc/1314509928216/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.38.24.png)
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.38.34.png]](http://www.gcestudybuddy.com/_/rsrc/1314509937460/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.38.34.png)
![[Image: Screen%20shot%202011-08-28%20at%20PM%2001.38.39.png]](http://www.gcestudybuddy.com/_/rsrc/1314509946187/using-hyperlinks/trigonometry/Screen%20shot%202011-08-28%20at%20PM%2001.38.39.png)
R Formula
Expressing
![[Image: trigonometry-formulas_clip_image002.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002.gif)
![[Image: trigonometry-formulas_clip_image002_0000.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0000.gif)
![[Image: trigonometry-formulas_clip_image002_0001.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0001.gif)
![[Image: trigonometry-formulas_clip_image002_0002.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0002.gif)
![[Image: trigonometry-formulas_clip_image002_0003.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0003.gif)
![[Image: trigonometry-formulas_clip_image002_0004.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0004.gif)
![[Image: trigonometry-formulas_clip_image002_0005.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0005.gif)
Example
Express
![[Image: trigonometry-formulas_clip_image002_0006.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0006.gif)
![[Image: trigonometry-formulas_clip_image002_0007.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0007.gif)
![[Image: trigonometry-formulas_clip_image002_0008.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0008.gif)
![[Image: trigonometry-formulas_clip_image002_0009.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0009.gif)
![[Image: trigonometry-formulas_clip_image002_0010.gif]](http://www.trigonometry-help.net/img/trigonometry-formulas_clip_image002_0010.gif)
Proving Trigo Identities - Many questions to practise!
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.34.png]](http://www.gcestudybuddy.com/_/rsrc/1314674158267/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.34.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.37.png]](http://www.gcestudybuddy.com/_/rsrc/1314674169294/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.37.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.42.png]](http://www.gcestudybuddy.com/_/rsrc/1314674178340/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.42.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.46.png]](http://www.gcestudybuddy.com/_/rsrc/1314674187505/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.46.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.50.png]](http://www.gcestudybuddy.com/_/rsrc/1314674196476/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.50.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.14.55.png]](http://www.gcestudybuddy.com/_/rsrc/1314674206530/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.14.55.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.00.png]](http://www.gcestudybuddy.com/_/rsrc/1314674224144/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.00.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.03.png]](http://www.gcestudybuddy.com/_/rsrc/1314674232318/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.03.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.09.png]](http://www.gcestudybuddy.com/_/rsrc/1314674327247/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.09.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.14.png]](http://www.gcestudybuddy.com/_/rsrc/1314674254730/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.14.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.19.png]](http://www.gcestudybuddy.com/_/rsrc/1314674265637/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.19.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.24.png]](http://www.gcestudybuddy.com/_/rsrc/1314674303907/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.24.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.29.png]](http://www.gcestudybuddy.com/_/rsrc/1314674311424/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.29.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.35.png]](http://www.gcestudybuddy.com/_/rsrc/1314674367384/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.35.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.43.png]](http://www.gcestudybuddy.com/_/rsrc/1314674347719/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.43.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%2011.15.39.png]](http://www.gcestudybuddy.com/_/rsrc/1314674356510/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.15.39.png)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314674955835/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.24.40.png?height=186&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314674977271/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.24.48.png?height=153&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314674994555/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.24.55.png?height=175&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675019542/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.15.png?height=213&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675035267/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.29.png?height=158&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=320]](http://www.gcestudybuddy.com/_/rsrc/1314675052466/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.36.png?height=262&width=320)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675087878/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.47.png?height=134&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675087878/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.47.png?height=134&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675101433/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.25.55.png?height=134&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675123693/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.01.png?height=129&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675138297/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.08.png?height=222&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675151103/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.19.png?height=155&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675191791/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.29.png?height=104&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675209104/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.35.png?height=163&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675221684/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.40.png?height=274&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675328006/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.49.png?height=114&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675353481/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.26.55.png?height=193&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675368886/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.08.png?height=197&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675387977/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.15.png?height=118&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675433919/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.24.png?height=113&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675457847/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.29.png?height=98&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675475291/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.35.png?height=192&width=400)
![[Image: Screen%20shot%202011-08-30%20at%20AM%201...&width=400]](http://www.gcestudybuddy.com/_/rsrc/1314675490093/using-hyperlinks/trigonometry/Screen%20shot%202011-08-30%20at%20AM%2011.27.41.png?height=120&width=400)
The Lord is my shepherd, I shall not want.