Given that $\sum\limits_{r=1}^{n}{{{u}_{r}}}=n(n+2)$. Find, in terms of $n$, \(\sum\limits_

Question

Given that $\sum\limits_{r=1}^{n}{{{u}_{r}}}=n(n+2)$. Find, in terms of $n$, $\sum\limits_{r=3}^{n}{{{u}_{r}}}$ $\sum\limits_{r=5}^{n}{{{u}_{r}}}$ $\sum\limits_{r=7}^{n+2}{{{u}_{r}}}$

Accepted Answer

(i) $n^2+2n-8$ (ii) $n^2+2n-24$ (iii) $n^2+6n-40$

Change of Base Q1

Change of Base Q1

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