Jak z e zrobić pi
: 22 lut 2025, o 05:31
\(\displaystyle{ \ln \left( { \prod_{n=0}^{ \infty } \frac{ \sqrt[\left( 2n+1\right) ^{k} ]{e} }{ \sqrt[\left( 2n+2\right) ^{k} ]{e} } } \right)= \sum_{n=1}^{ \infty } \frac{\left( -1\right) ^{n+1} }{n ^{k} } , k \ge 1 }\)
\(\displaystyle{ \ln \left( { \prod_{n=0}^{ \infty } \frac{ \sqrt[\left( 4n+1\right) ^{k} ]{e} }{ \sqrt[\left( 4n+3\right) ^{k} ]{e} } } \right)= \sum_{n=1}^{ \infty } \frac{\left( -1\right) ^{n+1} }{\left( 2n-1\right) ^{k} } , k \ge 1 }\)
\(\displaystyle{ \ln \left( { \prod_{n=0}^{ \infty } \frac{ \sqrt[\left( 4n+1\right) ^{k} ]{e} }{ \sqrt[\left( 4n+3\right) ^{k} ]{e} } } \right)= \sum_{n=1}^{ \infty } \frac{\left( -1\right) ^{n+1} }{\left( 2n-1\right) ^{k} } , k \ge 1 }\)