Question

1 < 1/(n+1).....+1/(3n+1)<2 . Prove for all positive n

Answer 1

is it true for n=1 ?

Answer 2

and, there isnt really enough information given in the post to determine any sort of pattern for the function ....

Answer 3

yep its true for n=1

Answer 4

i am trying to do it by induction

Answer 5

i cant verify that with the way you have this post structured.

\[\frac{1}{n+1}....+\frac1{3n+1}~:~is~meaningless.\]

Answer 6

the given information, on my end, has no discernable pattern to play with, or assess.