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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?

  • one year ago
  • one year ago

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  1. eohjelle
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    Your answer is definitely correct. There must be an error in the solution.

    • one year ago
  2. felixgraphx
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    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!!

    • one year ago
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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...


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