Objective
To use the half angle formulas to find non-common angle measures around the unit circle.
Web Resources
http://www.cliffsnotes.com/study_guide/DoubleAngle-and-HalfAngle-Identities.topicArticleId-11658,articleId-11612.html Notes with Examples on Double & Half Angle
http://www.mathwords.com/h/half_angle_identities.htm List of the half angle formulas
http://colalg.math.csusb.edu/~devel/IT/main/m05_identities/src/s03_half-angles.html Notes and Examples
http://www.intmath.com/analytic-trigonometry/4-half-angle-formulas.php Examples with solutions
http://www.mathwords.com/h/half_angle_identities.htm List of the half angle formulas
http://colalg.math.csusb.edu/~devel/IT/main/m05_identities/src/s03_half-angles.html Notes and Examples
http://www.intmath.com/analytic-trigonometry/4-half-angle-formulas.php Examples with solutions
Pay Attention to the Following:
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