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Absolute Extrema on a Closed Interval 2

Author: ShaNisaa RaSun

The following problem is solved in this video. It is recommended that you try to solve the problem before watching the video. You can click "Answer" to reveal the answer to the problem.

Problem: Find the absolute maximum and minimum of the function \(f(x)=\dfrac{8}{x^2-4}\) on each of the following intervals, if they exist.

  1. \([0,5]\)
  2. \((-1,1)\)
  3. \([-6,-3)\)

  1. Neither an absolute maximum nor an absolute minimum
  2. An absolute maximum of \(-2\) at \(x=0,\) No absolute minimum 
  3. An absolute minimum of \(\frac{1}{4}\) at \(x=-6,\) No absolute maximum

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