Question
In the following exercises, use the rules for sums of powers of integers to compute the sums.$$\sum_{i=5}^{10} i$$
Step 1
The formula for the sum of the first n natural numbers is given by: $$ \frac{n(n+1)}{2} $$ So, plugging in n=10, we get: $$ \frac{10(10+1)}{2} = \frac{10*11}{2} = 55 $$ Show more…
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