Pyetja
Integro funksionet që vijojnë.
- $\frac{x}{x^2 + 4}$
- $\frac{e^{2x}}{e^{2x} + 1}$
- $\frac{x}{(x^2 + 4)^3}$
- $\frac{e^{2x}}{(e^{2x} + 1)^3}$
- $\frac{\cos 2x}{3 + \sin 2x}$
- $\frac{\sin 2x}{(3 + \cos 2x)^3}$
- $xe^{x^2}$
- $\cos 2x (1 + \sin 2x)^4$
- $\sec^2 x \tan^2 x$
- $\sec^2 x (1 + \tan^2 x)$
