Monday, November 23, 2009

Fox 191

3 comments:

  1. (x+1/x)*1/2+(x+1/x)*2/2=A
    (x+1/x)*3/2=A
    dA=(1-1/x^2)*3/2=0 => x=1
    A=3

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  2. The answer looks right, but what do you call as x?

    ReplyDelete
  3. BO intersects midle paralel line at C
    AC=x

    ReplyDelete