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tripke Group Title

Can someone please explain all the steps to this problem: http://imageshack.us/scaled/landing/28/lateximg.png

  • one year ago
  • one year ago

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  1. Algebraic! Group Title
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    the first step is plugging 'a' into \[\frac{ f(x) -f(a) }{x-a}\]

    • one year ago
  2. Algebraic! Group Title
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    the second step is using the given: f(x) = 1/x

    • one year ago
  3. Algebraic! Group Title
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    the third steps is finding a CD in the numerator and then simplifying

    • one year ago
  4. Algebraic! Group Title
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    the last step is taking the limit x->2

    • one year ago
  5. tripke Group Title
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    Can you show me how to find a common denominator...That is the step that I am really lost at

    • one year ago
  6. Algebraic! Group Title
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    \[\frac{ 1 }{x } *\frac{ 2 }{2}- \frac{ 1 }{2} *\frac{ x }{x} = \frac{ 2-x }{ 2x }\]

    • one year ago
  7. tripke Group Title
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    thank u!

    • one year ago
  8. Algebraic! Group Title
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    sure

    • one year ago
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