Mathematics, 21.06.2021 05:20 ismailhajisaid29101
Which summation properties or formulas must be used to evaluate this summation? Check all that apply
Answers: 2
![\left[\because \sum\limits_{i=1}^n(a_i\pm b_i)=\sum\limits_{i=1}^na_i\pm \sum\limits_{i=1}^nb_i\right]](/tpl/images/1380/0789/c6b26.png)
![\sum\limits_{n=1}^{35}n(n^2+1)=\left[\dfrac{35(35+1)}{2}\right]^2+\dfrac{35(35+1)}{2}](/tpl/images/1380/0789/bc11a.png)
![\left[\because \sum\limits_{i=1}^ni=\dfrac{n(n+1)}{2},\sum\limits_{i=1}^ni^3=\left[\dfrac{n(n+1)}{2}\right]^2\right]](/tpl/images/1380/0789/af87e.png)
![\sum\limits_{n=1}^{35}n(n^2+1)=\left[\dfrac{35(36)}{2}\right]^2+\dfrac{35(36)}{2}](/tpl/images/1380/0789/95a1e.png)
![\sum\limits_{n=1}^{35}n(n^2+1)=\left[630\right]^2+630](/tpl/images/1380/0789/b6071.png)
![\sum\limits_{i=1}^n(a_i\pm b_i)=\sum\limits_{i=1}^na_i\pm \sum\limits_{i=1}^nb_i,\\\sum\limits_{i=1}^ni=\dfrac{n(n+1)}{2},\\\sum\limits_{i=1}^ni^3=\left[\dfrac{n(n+1)}{2}\right]^2](/tpl/images/1380/0789/26367.png)
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Which summation properties or formulas must be used to evaluate this summation? Check all that
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