Find the integral of $\frac{2GE}{E}$ using the table of common integrals rule $\int a\mathrm{d}K=aK$.
$$\frac{2GE}{E}K$$
Simplify.
$$2GK$$
If $F\left(K\right)$ is an antiderivative of $f\left(K\right)$, then the set of all antiderivatives of $f\left(K\right)$ is given by $F\left(K\right)+C$. Therefore, add the constant of integration $C\in \mathrm{R}$ to the result.
