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Homework Help: I'm not sure how to start solving this

  1. Dec 2, 2004 #1
    i have two equations -r^2/wc
    divided by r^2-(1/(wc)^2)
    equals -7903

    and r/(wc)^2
    divided by r^2-(1/(wc)^2)
    equals 3287



    w is a known quantity. How do I start to solve for r and c.
     
  2. jcsd
  3. Dec 2, 2004 #2

    arildno

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    1. Step:
    Divide the equations by each other; this gets rid of the difficult denominator, and you may express "c" in terms of "r" (or the other way around, if you prefer that).
    2.Step:
    Insert the given expression for "c" into one of your ORIGINAL equations.
    You have now a single equation in "r" which you may solve.
    3.Step
    With your "r"-solutions, put these into the relation you derived in 1. between "c" and "r" to determine the corresponding solving values for c.
     
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