Integrals of the product of even powers of sine and cosine (Trigonometric Integrals)

For the case when we are evaluating the integral of the product of even powers of sine and cosine, we don't use the substitution method unlike in the previous cases where there are odd powers of either sine and cosine. Instead we use a variety of trigonometric identities in order to reduce the expressions to terms of the form sin(nx) or cos(nx) which are easier to integrate.

This video is part of a lesson series in Integral #Calculus for my Grade 12 students in the Philippine Science High School Main Campus.

[charkueyteowww]

If you speak English, more people will watch this..