SOLUTION: the sum of the n terms of a sequence is 30-10/3^(n-1); n>1 find (a) sum of the first five terms (b) fifth term; of the sequence

Question 1069417: the sum of the n terms of a sequence is 30-10/3^(n-1); n>1
find (a) sum of the first five terms (b) fifth term; of the sequence
Answer by Edwin McCravy(20056) (Show Source): You can put this solution on YOUR website!



The sum of the first 5 terms is:



To find the 5th term, we need to find the sum of the
first 4 terms and subtract from that value:

The sum of the first 4 terms is:



So the 5th term is



Edwin

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