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Author: Tinku Tara

f-derivable-in-0-and-f-0-0-determined-lim-n-k-0-n-f-k-n-2-help-me-

Question Number 134928 by Abdoulaye last updated on 08/Mar/21 $$ \\ $$$$\mathrm{f}\:\mathrm{derivable}\:\mathrm{in}\:\mathrm{0}\:\mathrm{and}\:\mathrm{f}\:\left(\mathrm{0}\right)=\mathrm{0} \\ $$$${determined}\:\underset{{n}\rightarrow+\infty} {\mathrm{lim}}\underset{{k}=\mathrm{0}} {\overset{{n}} {\sum}}{f}\left(\frac{{k}}{{n}^{\mathrm{2}} }\right) \\ $$$$ \\ $$$${help}\:{me} \\ $$ Terms…

Question-69393

Question Number 69393 by 06 last updated on 23/Sep/19 Commented by Prithwish sen last updated on 23/Sep/19 $$\left(\mathrm{3}^{\mathrm{t}} +\mathrm{3}^{−\mathrm{t}} \right)^{\mathrm{3}} =\:\mathrm{5}^{\mathrm{3}} \Rightarrow\mathrm{27}^{\mathrm{t}} +\mathrm{27}^{−\mathrm{t}} +\mathrm{3}.\mathrm{3}^{\mathrm{t}} .\mathrm{3}^{−\mathrm{t}}…