Question
$\mathop {\lim }\limits_{x \to 0} \frac{{\sqrt {\frac{1}{2}(1 - \cos 2x)} }}{x} = $
अत: $\mathop {\lim }\limits_{x \to 0 + } \,\frac{{|\,\sin x\,|}}{x} = 1$ व $\mathop {\lim }\limits_{x \to 0 - } \,\frac{{|\,\sin x\,|}}{x} = - 1$
अत: सीमा का अस्तित्व नहीं है।
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