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
Algebra ->
Sequences-and-series
-> 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
Log On
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):
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