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  • Explain solution RD Sharma class 12 chapter 9 Differentiability exercise Very short answer type question 4 maths

Explain solution RD Sharma class 12 chapter 9 Differentiability exercise Very short answer type question  4 maths

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Answer: \mathrm{f}(\mathrm{x})=|x| \text { at } \mathrm{x}=0

            

Explanation: let f(x)=|x|=\left\{\begin{array}{ll} x & x>0 \\ -x & x<0 \end{array}\right\}

Now \lim _{x \rightarrow 0^{-}} f(x)=\lim _{x \rightarrow 0}-x=0 \text { and } \lim _{x \rightarrow 0^{+}} f(x)=0

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