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54:54
YouTube
Brian McLogan
Double and Half Angle Formulas | Analytic Trig | Pre-Calculus
In this video we will explore how to use the double angle to evaluate trigonometric expressions from triangles as well as angles in degrees and radians. We will then use double angle formulas to help verify trigonometric identities and solve trigonometric equations. I make short, to-the-point online math tutorials. I struggled with math growing ...
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Feb 9, 2020
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