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Double Angle Identities
🕑 Added 2023-01-04 11:42:13 +0000 UTCThis trigonometry video tutorial provides a basic introduction to the double angle identities of sine, cosine, and tangent. It explains how to derive the double angle formulas from the sum and difference identities of sin, cos, and tan and how to use the double angle formulas to find the exact value of trigonometric expressions using right triangle trigonometry and SOHCAHTOA. This video contains many examples and practice problems for you to learn this material.
Comments
Hassan Omani
Right tringle
Tanya Chidester
This video makes double angles really easy to understand