It seems
lim x -> +oo
sum( (-1)^i * x^(2*i-1)/( factorial(2*i)*ln(2*i) ) , i = 1 .. oo)
+(1/2)*Pi = 0
or in tex
\( -\pi/2 = \frac{lim} {x -> +oo} \sum_{i=1}^{\infty} \frac {(-1)^i x^{2i - 1}} {(2i)! ln(2i)} \)
how to prove it ?
regards
tommy1729
lim x -> +oo
sum( (-1)^i * x^(2*i-1)/( factorial(2*i)*ln(2*i) ) , i = 1 .. oo)
+(1/2)*Pi = 0
or in tex
\( -\pi/2 = \frac{lim} {x -> +oo} \sum_{i=1}^{\infty} \frac {(-1)^i x^{2i - 1}} {(2i)! ln(2i)} \)
how to prove it ?
regards
tommy1729
