Question
When asked to write the series $-1-4-9-16-25$ using summation notation, a student incorrectly wrote the following.$$\sum_{t=1}^{5}(-i)^{2}$$Give the correct summation notation.
Step 1
We can see that the series is a sequence of negative perfect squares. So, the general term can be written as $-t^2$. Now, we can write the correct summation notation using this general term and the given limits: Show more…
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When asked to write the series $-1-4-9-16-25$ using summation notation, a student incorrectly wrote the following. $$ \sum_{t=1}^{5}(-i)^{2} $$
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