Snapsolve any problem by taking a picture.
Try it in the Numerade app?
TABLE: Some Useful Summation Formulae. Sum Closed Form Σ (r + 0) 4r"+l r -1 Σr#1 k=0 Σ (r - 0)(i - 0) Σr"+[ a,r -1 r -1 Σ c(n-i+1) "u+) 2 k^2 n(n +1)(2n +1) 2 26+42
Submitted by Julie V. Oct. 19, 2021 11:03 p.m.
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