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Question Number 203144 by mustafazaheen last updated on 11/Jan/24

$$\mathrm{when}\mathrm{f}\left(\mathrm{x}\right)=\{\begin{array}{l}\mathrm{sinx}\pi <\mathrm{x}⩽2\pi \\ \mathrm{cosx}\frac{\pi }{2}⩽\mathrm{x}⩽\pi \end{array}\mathrm{find}{f}^{\prime }\left(2\pi \right)=?$$

Commented by mr W last updated on 13/Jan/24

$${\mathrm{f}}^{\prime }\left(2\pi \right){doesn}^{\prime }texist,sincef\left(x\right)isnot$$$$definedforx>2\pi .$$

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