Question

Let \(\Large f\) be twice continuous differentiable on an open interval \(\Large I\), i.e. the
second derivative \(\Large f^{''}\) is continuous on \(\Large I\).
a) Write down the Taylor formula of \(\Large f\) at \(\Large x_{0} \in I\) for \(\Large n = 1\), i.e. with a
remainder of 2nd degree.