Question
यदि $f(x) = \left\{ \begin{array}{l}\frac{1}{x}\sin {x^2},\;\;x \ne 0\\\,\,\,\,\,\,\,\,\,\,\,\,\,\,0,\,\;\,x = 0\end{array} \right.$, तो
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$(A)$ $\frac{\pi}{2}$ $(B)$ $\frac{\pi}{6}$ $(C)$ $\frac{2 \pi}{3}$ $(D)$ $\frac{5 \pi}{6}$