Question

Asked Feb 5, 2020

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Express the following sum in closed form. What is n (ending term)?

∑^{n}_{k=1}(5k−3)=

Step 1

Consider the given series.

**Then apply the sum rule on the expression.**

Step 2

Then, consider the first expression of the equation (1).

**Apply the constant multiplication rule and take out 5 from the sum of series.**

**Now, apply the sum formula and simplify.**

Step 3

Now, consider the second expression of the equation (1).

**Ap...**

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