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Sum and Difference Identities

12. Trigonometric Identities / Sum and Difference Identities / Problem 3

Problem 3

Convert the given trigonometric expression into an equivalent expression using a product-to-sum identity.
sin(35x)cos(38x)

A

(1/2)[sin(73x) - sin(3x)]

B

(1/2)[sin(73x) + sin(3x)]

C

(1/2)[sin(3x) - sin(73x)]

D

-(1/2)[sin(73x) + sin(3x)]