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B Small inequality

  1. Apr 24, 2016 #1
    What is the smallest n such that

    [tex]\lg {n\choose0.15n} + 0.15n \geq {112}[/tex]
    Last edited: Apr 24, 2016
  2. jcsd
  3. Apr 24, 2016 #2


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    What is lg?
  4. Apr 24, 2016 #3
    Log base 2
  5. Apr 24, 2016 #4


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    Does the log contain the sum of both combinations? (Then you should have added more brackets)
  6. Apr 24, 2016 #5
    Sorry I formulated the inequality wrong. It's fixed now.

    The log only contains the binomial.

    I think it might be easier just to do this numerically...
  7. Apr 25, 2016 #6


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    You can try to do:

    2^LH = 2^RH

    But I think the best approach is a numerical method.
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