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Is this an error in an AQA markscheme?

Discussion in 'Mathematics' started by rustybug, Dec 26, 2011.

  1. 3 sec^20 = 1/3????
    (That looks weird - it's three sec squared zero)
    It's 3, isn't it?
  2. briceanus

    briceanus New commenter

    If its the question on Jan 11,
    You found dx/dy to equal three,
    The question then requires you to find dy/dx, which is then shown as 1/3 in the markscheme.
    If it isn't this one, let me know.
  3. Of course, thank you!

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