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Trigonometry Proving Identities
Video title: Proof of sin(a+b) = (cos a)(sin b) + (sin a)(cos b)
An online trigonometry video that teaches students about the proof of the trig identity sin(a+b) = (cos a)(sin b) + (sin a)(cos b)Now Playing: Trigonometry Proving Identities
Khan Academy videos are licensed under a Creative Commons 3.0 License. This video is owned and provided free of cost by Khan Academy. Copyright Khan Academy 2010
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