Do you know its property - 2

Algebra Level 2

In a certain arithmetic progression, the following holds:

\[S_{1729}=S_{28},\]

where \(S_n\) denotes the sum of the first \(n\) terms. What is the \(879^{\text{th}}\) term of this arithmetic progression?


I made this problem while I was pondering over my friend Sandeep Bhardwaj's problem.
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