SOLUTION: Find the nth partial sum of the arithmetic sequence. an = 7n + 2; n = 10

SOLUTION: Find the nth partial sum of the arithmetic sequence. an = 7n + 2; n = 10

Algebra.Com

Question 1178675: Find the nth partial sum of the arithmetic sequence.
an = 7n + 2; n = 10
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

Find the nth partial sum of the arithmetic sequence.
given:

the nth partial sum formula of the arithmetic sequence:

find first term:

substitute
=>
=>
=>
go to
.........substitute and

RELATED QUESTIONS
Find the nth partial sum of the arithmetic sequence. an = 2n − x; n =... (answered by MathLover1)

find the first 4 partial sums and nth partial sum of the sequence An=square root n minus (answered by Fombitz)

find the indicated nth partial sum of the arithetic sequence: 11,17,23,29,...,n=... (answered by Fombitz)

Let {an}∞n=1 be a sequence whose partial sums are {Sn}∞n=1. Suppose that a1=2 (answered by greenestamps)

Use the partial sum formula to find the partial sum of the given arithmetic sequence. (... (answered by MathLover1,MathTherapy)

The sum of the first n terms of an arithmetic sequence is (2n^2)-n. Find the general term (answered by MathLover1)

A partial sum of an arithmetic sequence is given. Can you please help me find the sum?... (answered by Fombitz)

For the sequence a sub n = 7/3^n, find its fifth partial sum and its nth partial sum.... (answered by rothauserc)

Anyone have any ideas what this stuff is talking about? I'm lost, I need helppppp.... (answered by venugopalramana)