Question Number 29018 by Joel578 last updated on 03/Feb/18
![∫ (√(Σ_(n = 0) ^∞ [(−1)^n tan^(2n) (2x)])) dx](https://www.tinkutara.com/question/Q29018.png)
$$\int\:\sqrt{\underset{{n}\:=\:\mathrm{0}} {\overset{\infty} {\sum}}\left[\left(−\mathrm{1}\right)^{{n}} \:\mathrm{tan}^{\mathrm{2}{n}} \:\left(\mathrm{2}{x}\right)\right]}\:{dx} \\ $$
n-0-1-n-tan-2n-2x-dx-