Thread: arithmetic sequence

Find the sum of the even integers between
-50 and 200 including them, that is,
-50+(-48)+(-46)+....+198+200
Write down and use the correct formula.

Hello, Steph07!

Find the sum of the even integers between -50 and 200, inclusive.
That is: .

Write and use the correct formula.

This is an arithmetic series with:
. . first term , common difference , and terms.

The sum is: .

thank you so much!! ur awesome!