Gegeben: \(\displaystyle f(x)=2\cdot \cos(x)\)
Es soll gelten: \(\displaystyle F(\pi)=-2\)
\(\displaystyle F(x)=\class{mathjax-input mathjax-input-1}{\mspace{3mu}\Rule{4.0em}{0.9em}{0.3em}\mspace{3mu}}\cdot{\sin(x)}+\class{mathjax-input mathjax-input-2}{\mspace{3mu}\Rule{4.0em}{0.9em}{0.3em}\mspace{3mu}}\cdot{\cos(x)}+\class{mathjax-input mathjax-input-3}{\mspace{3mu}\Rule{4.0em}{0.9em}{0.3em}\mspace{3mu}}\)