Question 1128246: f={(1,2),(2,3),(3,3)},g={(1,0)(2,3),(3,2),(4,8)}
a.Find f+g=
Answer by greenestamps(13195)   (Show Source):
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(f+g)(1) = f(1)+g(1) = 2+0 = 2
(f+g)(2) = f(2)+g(2) = 3+3 = 6
(f+g)(3) = f(3)+g(3) = 3+2 = 5
Although g(4) is defined, f(4) is not; therefore (f+g)(4) is not defined.
ANSWER: (f+g) = {(1,2),(2,6),(3,5)}
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