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Trig

posted by on .

Rules of Logarithms: Can someone explain how to do:
1) e^(2(ln)(x))
2) e^(-lnx)

I know the rules I just don't understand how they apply..
thanks!

  • Trig - ,

    the "rule" here is that
    e^ln(k) = k

    so e^(2lnx)
    = e^ln(x^2)
    = x^2

    and
    2) e^(-lnx)
    = e^ln(x^-1)
    = x^-1
    or 1/x

  • Trig - ,

    This is not the trigonometry I studied in high school

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