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when toggle format what by license comment
Oct 11 at 1:38 history edited ItsErtHere CC BY-SA 4.0
Specified question 2, added request for q2 and q3
Oct 11 at 1:30 vote accept ItsErtHere
Oct 11 at 1:29 history edited ItsErtHere CC BY-SA 4.0
Added domain of f
Oct 10 at 19:16 comment added Martin R The answers given so far show that the answer depends highly on the domain of $f$. Please update your question with the exact assumptions you are making.
Oct 10 at 18:02 answer added Christophe Boilley timeline score: 2
Oct 10 at 15:40 answer added Randall timeline score: 3
Oct 10 at 15:40 comment added Martin R See artofproblemsolving.com/community/c4h607240p3608710 on AoPS.
Oct 10 at 15:38 comment added Randall You probably definitely want to assume $f$ isn't constantly zero, but are there any other constraints to impose?
Oct 10 at 15:31 history asked ItsErtHere CC BY-SA 4.0