Find x

Discussion in 'Algebra' started by nycmathguy, Aug 27, 2021.

  1. nycmathguy

    nycmathguy

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    If ln (x) = x, find x.
     
    nycmathguy, Aug 27, 2021
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  2. nycmathguy

    MathLover1

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    If f (x )=g (x ), then a^(f (x ))=a^(g (x )).


    ln(x)=x...........since the base of natural logarithm is e, applying the rule above

    we have

    e^(ln(x ))=e^x........since e^(ln (x) )= x

    x=e^x => No Solution for x in R
     
    MathLover1, Aug 27, 2021
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    nycmathguy likes this.
  3. nycmathguy

    nycmathguy

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    I found this question on FB.
     
    nycmathguy, Aug 27, 2021
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