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Prove that the equation is an identity.

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trigonometry
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asked Nov 14, 2016 in TRIGONOMETRY by anonymous

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1 Answer

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The trigonometric identity is .

Factorization of the sum or difference of the two sines formula

Apply formula for LHS and proove that RHS.

Hence LHS equal to RHS.

answered Nov 14, 2016 by Anney Mentor

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