Re: Chalkboard Math Message #3 Posted by Karl Schneider on 10 June 2010, 1:22 a.m., in response to message #1 by Chuck
Quote:
"I asked my son (recent AP calc student) what was wrong in this picture. Took him about 5 seconds to see the omission. Not that I'm perfect on a chalkboard (or white board) either, but it's a fun past-time to spot these things"
The derivation looked fine, assuming that the function was f(x) = x2. Was it the missing hash mark from the second "f(x)"?
-- KS
Edited: 10 June 2010, 1:23 a.m.
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