Question
In Exercises $61-68,$ use the graphs of $\left\{a_{n}\right\}$ and $\left\{b_{n}\right\}$ to find each indicated sum.$$\sum_{i=1}^{5}\left(a_{i}+3 b_{i}\right)$$
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This can be rewritten as $\sum_{i=1}^{5} a_{i} + 3\sum_{i=1}^{5} b_{i}$ by the properties of summation. Show more…
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