[DTube] Reduction Formula for Integral of ∫tan^n(x)dx

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In this video, we work through the derivation of the reduction formula for the integral of tanⁿ(x) or [tan(x)]ⁿ.

We can approach this problem by first reserving a tan²(x), so we write:

The by the Pythagorean Identity, we can express tan²(x) as sec²(x)-1, so...

Thus we end up with 2 integrals.

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