3 Replies to “WitCH 12: Duplicitous”

  1. In context, having part (b) is dumb. I’d get rid of part(b) and make part (c) (the new part (b)) worth 3 marks, 4 at an absolute stretch.

    1. I wonder if the point of having both parts (b) and (c) is to force students to adjust the limits of the definite integral once the substitution is made.

      This is not much of a defence of the question, of course. Especially because this sort of thing is routinely assessed on the multiple choice component of exam 2.

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