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OpenStudy (anonymous):
Is the posted solution to problem 2B-1, sub-problem b correct? It claims that the derivative of y=x^4-4x+1 is y'=x^3-4. It seems to me that the correct answer is 4x^3-4. Am I wrong, and if so why?
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OpenStudy (anonymous):
Your answer is definitely correct. There must be an error in the solution.
OpenStudy (anonymous):
AH! I just posted that same question - looks like I'm not the only one who does the problem sets !! I wish there was a search function for already asked questions!!
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