There are 3 terms in the series. The first term is found by plugging in n=1:
17(1) - 25 = -8
The last term is found by plugging in n=3:
17(3) - 25 = 26
To find the sum, we add up all three terms:
-8 + (17(2) - 25) + (17(3) - 25)
Simplifying:
-8 + 9 + 26 = 27
Therefore, the series has 3 terms, with a first term of -8, a last term of 26, and a sum of 27.
Find the number of terms in each series, the first term, and the last term. Then evaluate the sum. \sum _{n=1}^3\left(17n-25\right)
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