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Play - Sum the following series to n terms: 1/(1. 6)+1/(6. 11)+1/(11. 16)+1/(...
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Play - Find the sum : sum(r=1)^n1/((a r+b)(a r+a+b))
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Play - Find the sum to n terms of the series: 3/(1^2 .2^2)+5/(2^2 .3^2)+7/(3...
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