Given Ur = 3/ (r2+3r)
I have simplified n∑r=1 Ur in terms of n by expressing in partial fraction.
Determine the value of ∞∑r=1 Ur , deduce the value of ∞∑r=2 Ur+1
I just donít know how to deduce . Can anyone explain to me ?
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Originally Posted by Ahjiao Determine the value of ∞∑r=1 Ur , deduce the value of ∞∑r=2 Ur+1 Decompose into partial fractions and look here: Convergence of the series 1 / n(n+2)
If you know the value of , you should be able to find the value of . You just subtract the first two terms.
And this new sum is the same as . If you're having trouble seeing it, write the first few terms of each.
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