The derivative, $f^{\text{'}}(x)$ of a function $f(x)$ can be approximated by the equation below:

$f^{\text{'}}(x)$~~$\frac{f(x+x)-f(x)}{x}$

Assume:

$f(x)=x^2+3x-4$

$x=0\mathrm{.}2$

Write a Python code to calculate and print these values:

the approximate derivative at $x=3$

the true derivative at $x=3$

True Error

Relative True Error

Absolute Relative True Error

You should upload two files:

The Python source code

The screenshot of the output