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क्या \(f(x)=\tan x\) के लिए अंतराल \(0 \leq x \leq \pi\) में रोले का साध्य प्रयोज्य है ? सकारण लिखें।

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\(\begin{aligned} \lim _{h \rightarrow 0} f(\pi / 2+h) & =\lim _{h \rightarrow 0} \tan (\pi / 2+h) \\ & =\lim _{h \rightarrow 0}-\cot h=-\infty . \\ \lim _{h \rightarrow 0} f(\pi / 2-h) & =\lim _{h \rightarrow 0} \tan (\pi / 2-h) \\ & =\lim _{h \rightarrow 0} \cot h=+\infty \end{aligned}\)

\(\therefore x=\pi / 2\) पर f(x) संतत नहीं है।

\(\therefore\) अंतराल \(0 \leq x \leq \pi\) के प्रत्येक बिंदु पर f(x) संतत नहीं है।

अतः रोले का साध्य, \(0 \leq x \leq \pi\) में प्रयोज्य नहीं है।

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