For the first one look here
http://www.mathhelpforum.com/math-he...rgent-not.html
For the second one consider
Hello, I have no idea how to show that the following infinite series diverge. I am supposed to compare then to the harmonic series... but I just don't get it.
1.
Hint for a sufficiently large
2.
Hint for a sufficiently large
Thanks in advance.
For the first one look here
http://www.mathhelpforum.com/math-he...rgent-not.html
For the second one consider