Trigonometric Identity Proof (sin(2x)-sin(x))/(1cos(x)+cos(2x))=tan(x)

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Trigonometric Identity Proof
(sin(2x)-sin(x))/(1cos(x)+cos(2x))=tan(x)

This video shows you a simplified way of verifying trigonometric identities whenever you have to prove or verify a trig identity.

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