SOLUTION: The sum n terms is given by sn=n/2(1+n) find the fifth term of the sequence

Algebra.Com
Question 848491: The sum n terms is given by sn=n/2(1+n) find the fifth term of the sequence
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 
Hi,

d = 1 and ,
{1, 2, 3, 4, 5, ....} and

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