I've been stuck on how to do this question for over an hour. I clearly don't understand how to do it, hopefully somebody can help explain this to me?

Given:

find a_{100}

Thank you.

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- Nov 18th 2012, 02:55 PMKevmckFinding 'a' given two summations
I've been stuck on how to do this question for over an hour. I clearly don't understand how to do it, hopefully somebody can help explain this to me?

Given:

find a_{100}

Thank you. - Nov 18th 2012, 03:07 PMPlatoRe: Finding 'a' given two summations
- Nov 18th 2012, 03:12 PMKevmckRe: Finding 'a' given two summations
Given:

find a100

Sorry, I wasn't sure how to fix the formatting before, I shouldn't have left it like that until I figured out how. Fixed. - Nov 18th 2012, 03:25 PMPlatoRe: Finding 'a' given two summations
- Nov 18th 2012, 03:42 PMKevmckRe: Finding 'a' given two summations
I'm not sure I really understand, but thank you for the help.

- Nov 18th 2012, 04:41 PMSorobanRe: Finding 'a' given two summations
Hello, Kevmck!

Quote:

.

. .

. . . . . .

. . . . . . .

.

. .

. . . . . .

From [3], we have: .

From [4], we have: .

Subtract: .

- Nov 19th 2012, 11:50 AMKevmckRe: Finding 'a' given two summations
Thank you Soroban. In writing out potential solutions after getting the help from Plato, I eventually came up with 200 and 50 but I didn't know what I was supposed to do with them from there. This example has helped solidify what was happening and what the question was asking for. Thank you again.