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☝☝and the sum too? Please help

☝☝and the sum too? Please help-example-1
User Jiyang
by
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1 Answer

5 votes

Answer:

There should ten terms in the series

Explanation:

The number on top of the sigma symbol represents the number of terms in the series.

True answer:

-2+1+4+...22+25= 115

User Riotera
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