Calculus II: Trigonometric Integrals (Level 6 of 7) | Product to Sum Identities

This video continues illustrating methods for solving trigonometric integrals that contain combinations of trigonometric functions. Specifically, those that contain products of sine and cosine with distinct arguments (angles). This video covers 3 examples illustrating the use of the product to sum identities for sine and cosine.

#calculus2 #math #school

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[MathFortress]

Yes you are correct but recall the Trigonometric identity cos(-x) = cos(x), so cos(-2x) is equivalent to cos(2x).

[kyleoxley]

This video doesn't seem to be playing. It might need to be re uploaded? Thank you! The videos are very helpful!