If `S_n`, be the sum of `n` terms of an `A.P`; the value of `S_n-2S_(n-1)+ S_(n-2)`, is

96 views · Published 12 October 2018 · 5:06 · Indexed 4 October 2026

Channel: Doubtnut · 2018 · Education

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To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW If `S_n`, be the sum of `n` terms of an `A.P`; the value of `S_n-2S_(n-1)+ S_(n-2)`, is

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