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Write the sum using sigma notation: 123 +4+***+122= sum l ^ A B where

Write the sum using sigma notation: 123 +4+***+122= sum l ^ A B where-example-1

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GIVEN

The sum is given to be:


1+2+3+4+...+122=\sum_(n=1)^AB

SOLUTION

The sigma notation for writing sums can be described as shown in the image below:

From the given information, each successive term of the sum increases by 1. This means that the formula for the terms will be:


\Rightarrow n

The last value of the sum is 122.

Therefore, the sigma notation will be:


\Rightarrow\sum_(n=1)^(122)\:n

Hence, the answers are:


\begin{gathered} A=122 \\ B=n \end{gathered}

Write the sum using sigma notation: 123 +4+***+122= sum l ^ A B where-example-1
User Bridger Maxwell
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