The integral of the inverse of the lineal function is given by the following formula, $\displaystyle\int\frac{1}{x}dx=\ln(x)$
$2\ln\left(x\right)$
2
As the integral that we are solving is an indefinite integral, when we finish integrating we must add the constant of integration $C$
$2\ln\left(x\right)+C_0$
Final answer to the problem
$2\ln\left(x\right)+C_0$
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