Objective
To explore the concept of double angles and use formulas to calculate their values.
Web Resources
http://www.regentsprep.org/Regents/math/algtrig/ATT14/formulaprac.htm Practice Problems: Sum and Difference, Double Angle, & Half Angle
http://www.cliffsnotes.com/study_guide/DoubleAngle-and-HalfAngle-Identities.topicArticleId-11658,articleId-11612.html Notes with Examples on Double & Half Angle
http://hotmath.com/hotmath_help/topics/double-angle-and-half-angle-identities.html Examples with step-by-step solutions
http://www.intmath.com/analytic-trigonometry/3-double-angle-formulas.php Notes, Examples, and Practice Problems with Solutions
Pay Attention to the Following:
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