Natural log: ln

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  1. Evaluate ln5
    1. by using the LOG key on a calculator.
    2. by using the LN key on a calculator.
  2. Without using a calculator, evaluate:
    1. lne\ln e
      [useful rule:lne=1] \ln e = 1]
    2. eln500 e^{\ln500}
      [useful rule: elna=a] e^{\ln a} = a]