[DTube] Integral of ∫tan^4(x)dx using the Reduction Formula

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In this video, we work through the process of solving the integral of ∫tan^4(x)dx with the reduction formula we derived in an earlier video.

The idea with the reduction formula is to reduce the power to lower powers until we can use the standard integral for tan^2(x).

Remember tan^4(x) = [tan(x)]^4.

We also find the integral for a more general case: ∫tan^4(ax)dx by applying a simple substitution and the reduction formula

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