Question

another convergent divergent quest here , wait ..

Answer 1

\[\sum_{1}^{\infty}(-1)^{n+1}10^n \div (n+1)!\]

Answer 2

\[\sum_{n=1}^{\infty}(-1)^{n+1}\frac{10^n}{(n+1)!}\]

converges

Answer 3

why

Answer 4

I can just tell...;)

try using the ratio test

Answer 5

also it is absolutely convergent .. ok i got now

Answer 6

yes

Answer 7

thanks