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Consider the equation .

  1. What is in terms of and ?

    You could simplify now, if you choose.

  2. Evaluate

    has both and variables.
    So, before you evaluate, use the original equation
    () to find the -value that corresponds with . It is possible that there will be more than one.

    Use a calculator to find the THREE -values that correspond with .

  3. Determine all points where the derivative is undefined.