Find the sum to terms of the series Solution Let, If, then, Where is the from? Using the method of differences,
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Originally Posted by SengNee Find the sum to terms of the series Solution Let, If, then, Where is the from? Mr F answers: Do you know what (r+1)! means? It means (r+1)(r)(r-1)(r-2) ....... (2)(1). But (r)(r-1)(r-2) ...... (2)(1) is r! Therefore ...... Using the method of differences, ..
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