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# Series Comparison test help watch

1. Can someone help me with 2(ii)?

do I say 1/n(n+1) < 1/n^2 ?
2. (Original post by SWISH99)
Can someone help me with 2(ii)?

do I say 1/n(n+1) < 1/n^2 ?
Yes. You should know that converges thus ...
3. (Original post by SWISH99)
do I say 1/n(n+1) < 1/n^2 ?
Yes that works and you are given that the 1/n^2 sequence converges.
4. (Original post by Notnek)
Yes that works and you are given that the 1/n^2 sequence converges.
\

thanks a lot

Any ideas on iii?
5. (Original post by SWISH99)
\

thanks a lot

Any ideas on iii?
for all
6. (Original post by RDKGames)
for all
cool thanks

And I'm assuming this comparison can also be used in part ( iiv) as well?
7. (Original post by SWISH99)
cool thanks

And I'm assuming this comparison can also be used in part ( iiv) as well?
actually never mind it wouldn't work
8. (Original post by SWISH99)
actually never mind it wouldn't work
No it wouldn't, but you can use the fact at the top of your sheet about convergence of on a suitable comparison to

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