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Board Question Paper : March 2018 — Statistics STD 12 Commerce — Question

Gujarat BoardEnglish MediumSTD 12 CommerceStatisticsBoard Question Paper : March 20181 Mark
Question
Find $f^{\prime}(x)$ for the function $f(x)=21$.
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Answer

Derivate of constant number is always zero. So, if function$f(x)=21 \text { the } f^{\prime}(x)>0 .$

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