Question Number 95328 by mr W last updated on 24/May/20
Commented by mr W last updated on 24/May/20
$${reposted}\:{question} \\ $$
Commented by MJS last updated on 24/May/20
$$\mathrm{it}'\mathrm{s}\:\mathrm{the}\:\mathrm{same}\:\mathrm{as}: \\ $$$$−\underset{{n}=\mathrm{1}} {\overset{\infty} {\sum}}\frac{\mathrm{cos}\:{n}\pi}{\sqrt{\pi}} \\ $$$$\mathrm{not}\:\mathrm{sure}\:\mathrm{if}\:\mathrm{this}\:\mathrm{helps}... \\ $$
Commented by mr W last updated on 24/May/20
$${thanks}\:{so}\:{far}\:{sir}! \\ $$