Question
यदि $f(x) = \left\{ \begin{array}{l}\frac{{\sin x}}{x} + \cos x,\;\;x \ne 0\\\;\;\;\;\;\;\;\;\;\;\;\;\;\;2,\;\;x = 0\end{array} \right.$, तो
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को संतुष्ट करने वाले फलनों
$\mathrm{f}:\{1,2,3,4\} \rightarrow\{\mathrm{a} \in \mathbb{Z}|\mathrm{a}| \leq 8\}$
की संख्या है -
$(-2,0),(0,4),(0, \mathrm{k})$