1-pi-6-27-6-pi-12-27-2-12-pi-18-27-3-18-e-pi-a-e-pi-a-2a-Find-a-

Question Number 139481 by Dwaipayan Shikari last updated on 27/Apr/21

1 + \frac{π^{6}}{27.6!} + \frac{π^{12}}{27^{2} . 12!} + \frac{π^{18}}{27^{3} . 18!} + \dots = \frac{e^{\frac{π}{\sqrt{a}}} + e^{- \frac{π}{\sqrt{a}}}}{2 a}

F i n d a