Answer
sum
Work Step by Step
RECALL:
$(f+g)(x)=f(x) + g(x)$
Thus, $(f+g)(x)$ is the sum of the functions $f$ and $g$.
The answer is: sum
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.