Answer
Let f(x) = x is onto, and g(x) = -x is also onto (f+g)(x) = 0 for all x, hence f+g is not onto
Work Step by Step
Let f(x) = x is onto, and g(x) = -x is also onto (f+g)(x) = 0 for all x, hence f+g is not onto
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.