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anonymous
 2 years ago
How to find nth term of the series,and therefore Sum of n terms?
anonymous
 2 years ago
How to find nth term of the series,and therefore Sum of n terms?

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anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0\[\Large S_n=\frac{1}{1.4} + \frac{1}{4.7} + \frac{1}{7.10}..n \]

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

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1389456863526:dw do this for every term

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1yeah, 1/n(n+3) will not work,

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1that "...n" implies thatere are total n terms ?

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.11/ [ (3n2)(3n+1)] this works ?

anonymous
 2 years ago
Best ResponseYou've already chosen the best response.0how did u think of that ? :

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1easy difference of 3 so multiple of 3 1..4...7..are all 1 less than multiple of 3

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1did u get what to do for each term ? partial fraction kind of thingi

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

hartnn
 2 years ago
Best ResponseYou've already chosen the best response.1did u get what i did in the drawing ?

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

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