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How to find nth term of the series,and therefore Sum of n terms?
 3 months ago
 3 months ago
How to find nth term of the series,and therefore Sum of n terms?
 3 months ago
 3 months ago

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INeedHelpPlease?Best ResponseYou've already chosen the best response.0
\[\Large S_n=\frac{1}{1.4} + \frac{1}{4.7} + \frac{1}{7.10}..n \]
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
but that doesn't match for n=3?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
dw:1389456863526:dw do this for every term
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
yeah, 1/n(n+3) will not work,
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
that "...n" implies thatere are total n terms ?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
1/ [ (3n2)(3n+1)] this works ?
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
how did u think of that ? :
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
works i guess
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
easy difference of 3 so multiple of 3 1..4...7..are all 1 less than multiple of 3
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
did u get what to do for each term ? partial fraction kind of thingi
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
how do i find Sn now? partial fraction?i remember it kinda  1/3((3n2)(3n+1))/(3n2)(3n3) ?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
did u get what i did in the drawing ?
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
which drawing O_O
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
if yes, do it for 2nd term and tell me what u get
 3 months ago

INeedHelpPlease?Best ResponseYou've already chosen the best response.0
why did u do that?
 3 months ago

hartnnBest ResponseYou've already chosen the best response.1
do the same thing for 2nd term, then 3rd term, and observe what happens, then you'll know why that was done
 3 months ago
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