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Manipulating the centered difference approximation

  1. Oct 3, 2011 #1
    The equation is attached in the image file. I tried several times to work it out but I can't figure this out for the life of me. They just want me to show that the first equation equals the second one. Any atmospheric/meteorology majors out there? Any help in general would be appreciated.
     

    Attached Files:

  2. jcsd
  3. Oct 6, 2011 #2
    Treat it as a*x**2 + b*x + c = 0 and solve for x. The radical sign should extend over the division by R.
     
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