Does e^(-ln(x)) Simplify to 1/x?

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In summary, e^(-ln(x)) is the inverse function of the natural logarithm and is equal to 1/x. To simplify e^(-ln(x)), you can use the property that ln(e^x) = x. The significance of e^(-ln(x)) is its relationship to the natural logarithm and its ability to find the multiplicative inverse of any positive real number. It can also be used to solve equations involving logarithms by rewriting them in exponential form. e^(-ln(x)) is always equal to 1/x due to the nature of inverse functions.
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Homework Statement



Is ##e^{-ln(x)}## equal to ##\frac{1}{x}## ?

Homework Equations


The Attempt at a Solution



##e^{-ln(x)} = e^{ln(x^{-1})} = e^{ln(\frac{1}{x})} = \frac{1}{x}## ?

Thanks!
 
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1s1 said:

Homework Statement



Is ##e^{-ln(x)}## equal to ##\frac{1}{x}## ?

Homework Equations


The Attempt at a Solution



##e^{-ln(x)} = e^{ln(x^{-1})} = e^{ln(\frac{1}{x})} = \frac{1}{x}## ?

Thanks!

Yes that is correct. It's a very common mistake that I see to not apply the log rules before eliminating ##e## and ##ln##.
 
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FAQ: Does e^(-ln(x)) Simplify to 1/x?

What is e^(-ln(x))?

e^(-ln(x)) is an expression that represents the inverse function of the natural logarithm. It is equal to 1/x, where x is any positive real number.

How do you simplify e^(-ln(x))?

To simplify e^(-ln(x)), you can use the property of logarithms that states that ln(e^x) = x. This means that e^(-ln(x)) can be rewritten as e^(ln(1/x)), which simplifies to 1/x.

What is the significance of e^(-ln(x))?

The significance of e^(-ln(x)) lies in its relationship to the natural logarithm. Since the inverse of the natural logarithm is 1/x, e^(-ln(x)) provides a way to find the multiplicative inverse of any positive real number x.

Can e^(-ln(x)) be used to solve equations involving logarithms?

Yes, e^(-ln(x)) can be used to solve equations involving logarithms. It can be used to rewrite logarithmic equations in exponential form, making it easier to solve for the variable.

Is e^(-ln(x)) always equal to 1/x?

Yes, e^(-ln(x)) is always equal to 1/x. This is because the natural logarithm and the exponential function are inverse functions of each other, and the inverse of an inverse is the original function.

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