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# Integrate 1/1+x^2 from nf*i*-1 to nf*i

### Videos

$2f\cdot ni+\frac{2\cdot i^{3}f^{3}n^{3}}{3}$

## Step-by-step explanation

Problem

$\int_{-i\cdot n\cdot f}^{in\cdot f}\left(\frac{1}{1}+x^2\right)dx$
1

The integral of a sum of two or more functions is equal to the sum of their integrals

$\int_{-f\cdot ni}^{f\cdot ni} x^2dx+\int_{-f\cdot ni}^{f\cdot ni}1dx$

$2f\cdot ni+\frac{2\cdot i^{3}f^{3}n^{3}}{3}$
$\int_{-i\cdot n\cdot f}^{in\cdot f}\left(\frac{1}{1}+x^2\right)dx$