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Section 13.3 Week 4 Assignment

  1. Calculate this integral. Show all your steps and reasoning, including the details of any integral rules used. (6)
    \begin{equation*} \int (4x^2 - x)e^x dx \end{equation*}
  2. Calculate this integral. Show all your steps and reasoning, including the details of any integral rules used. (6)
    \begin{equation*} \int_2^3 x \sqrt[4]{x^2 - 4} dx \end{equation*}
  3. Consider the following general integral form, where \(p(x)\) is an arbitrary polynomial. (4)
    \begin{equation*} \int p(x) e^x dx \end{equation*}
    Why does integration by parts help with this type of integral? How many times do you have to use integration by parts to finish the integral?