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

Question

asked Sep 17, 2023 79.6k views

1 Answer

Bridger Maxwell · Answer 1 · 2023-09-21T13:30:33+0000

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:

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