Question

Find the 3rd term of the arithmetic series described as : a{1} =102, a{n}= 57 and S{n}=795?

Answer 1

I'm not sure what you mean by a{n} = 57

Answer 2

Are you saying the series converges to 57? And that the sum converges to 795?

Answer 3

oh, one sec.. gotta refresh my coffee

Answer 4

like A of n The "n" is below the A

Answer 5

Yes I get that, but how can you say the n'th term of the series is 57. For what value of n?

Answer 6

S{n} =795

Answer 7

That's the sum of the first n terms, but again, what is n?

Answer 8

I have no clue!