Midterm Exam Practice Test

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This is a practice test for the midterm exam. Feel free to drop any comment or question below. I will try to answer here as many as possible, until the day before the test. Also, remember that I will be holding my usual office hours. Good luck!

  1. [10 pts] Find the area of the region that is enclosed between the curves y=x^2 and y=x+6.
  2. [15 pts] Find the volume of the solid that is obtained when the region under the curve y=\sqrt{x} over the interval [1,4] is revolved about the x-axis.
  3. [15 pts] Find the volume of the solid generated when the region enclosed by y=\sqrt{x}, y=2 and x=0 is revolved about the y-axis.
  4. [10 pts] Use the Fundamental Theorem of Calculus to find the derivative of the function F(x)=\displaystyle{\int_x^\pi \sqrt{1+\sec t}\, dt.}
  5. [15 pts] Find the volume of the solid obtained by rotating the region bounded by the curves x=4y^2-y^3 and x=0 about the x–axis.
  6. [10 pts] Find the average value of the function f(x) = 1/x over the interval [1,e].
  7. [15 pts] Find a positive value of k such that the average value of f(x) = \displaystyle{\frac{1}{\sqrt{k^2-x^2}}} over the interval [-k,k] is \pi.
  8. [10 pts] Evaluate the integral \displaystyle{\int x^2 \sqrt{x-1}\, dx.}
  1. Anonymous
    July 11, 2012 at 9:58 am
    Reply

    for #3 what method do we use or can we use any of them.

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