3.10: Double Angle Identities Difficulty Level: At Grade Created by: CK-12 Estimated11 minsto complete % Progress Practice Double Angle Identities MEMORY METER This indicates how strong in your memory this concept is Practice Progress Estimated11 minsto complete % Estimated11 minsto complete % Practice Now MEMORY METER This indicates how strong in your memory this concept is Share Add to Library Turn In Read Practice Resources Details Loading... Notes/Highlights Having trouble? Report an issue. Color Highlighted Text Notes Show More Vocabulary Language: English ▼ English Double Angle Identity A double angle identity relates the trigonometric function of two times an argument to a set of trigonometric functions, each containing the original argument. Half Angle Identity A half angle identity relates a trigonometric function of one half of an argument to a set of trigonometric functions, each containing the original argument. identity An identity is a mathematical sentence involving the symbol “=” that is always true for variables within the domains of the expressions on either side. power reducing identity A power reducing identity relates the power of a trigonometric function containing a given argument to a set of trigonometric functions, each containing the original argument. Image Attributions Show Hide Details Description Derivation of double angle identities for sine, cosine, and tangent Learning Objectives None Related Materials Double, Half, and Power Reducing Identities Difficulty Level: At Grade Authors: Bradley Hughes Larry Ottman Lori Jordan Mara Landers Andrea Hayes Brenda Meery Art Fortgang Tags: cosine double angle formula MAT.TRG.340.L.1 sine double angle formula (1 more) tangent double angle formula Subjects: mathematics Concept Nodes: MAT.TRG.340 (Double Angle Identities) Grades: 10 , 11 , 12 Date Created: Sep 26, 2012 Last Modified: Aug 11, 2016 Vocabulary None Save or share your relevant files like activites, homework and worksheet.To add resources, you must be the owner of the Modality. Click Customize to make your own copy.