Question and Answers Forum

All Questions      Topic List

Others Questions

Previous in All Question      Next in All Question      

Previous in Others      Next in Others      

Question Number 117460 by Dwaipayan Shikari last updated on 11/Oct/20

((2(√2))/(9801))Σ_(n=1) ^∞ (((4n)!(1103+26390n))/((n!)^4 396^(4n) ))=(1/π)   (Prove that)

$$\frac{\mathrm{2}\sqrt{\mathrm{2}}}{\mathrm{9801}}\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\left(\mathrm{4}{n}\right)!\left(\mathrm{1103}+\mathrm{26390}{n}\right)}{\left({n}!\right)^{\mathrm{4}} \mathrm{396}^{\mathrm{4}{n}} }=\frac{\mathrm{1}}{\pi}\:\:\:\left({Prove}\:{that}\right) \\ $$

Commented by Dwaipayan Shikari last updated on 11/Oct/20

This had been done by Ramanujan. Do you have any idea  how to solve it?

$${This}\:{had}\:{been}\:{done}\:{by}\:{Ramanujan}.\:{Do}\:{you}\:{have}\:{any}\:{idea} \\ $$$${how}\:{to}\:{solve}\:{it}? \\ $$

Commented by mindispower last updated on 11/Oct/20

see generalised hyergeometric function

$${see}\:{generalised}\:{hyergeometric}\:{function} \\ $$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com