\(f(x)\)

• \(log{(1 + \left|x\right|^{2+\sin x})}\)
• \((2+\frac{\sin{50x}}{50}) ({\arctan x})^2\)
• \(\left|\left\lfloor x \right\rfloor - 50\right|\)

\(=\) \(\log{(1 + \left|x\right|^{2+\sin x})}\)