Prove e^ln(a)*b = a^b: Intuitive Proof

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In summary, the conversation discusses the proof of e^[ln(a)*b] = a^b and the use of exponent properties in understanding it. The concept is explained in terms of inverse operations and functions, with the example of (sin(arcsin(x)) = x being mentioned. The conversation also touches upon the psychological blockers that can occur when applying multiple rules at once. Ultimately, the conversation concludes that the proof makes sense in terms of the definition of ln(x) and exp(x) as inverse operations.
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Prove e^[ln(a)*b] = a^b

I understand perfectly why e^ln(x) = x ... and ...I see why it works numerically but I can't justify it in terms of proof? I'd be satisfied if I could dilute this into some other proofs I'm familiar with like exponent properties such as c^(a+b) = (c^a)*(c^b) but I can't seem to figure it out intuitively.. searching the internet hasn't yielded a desired answer either.

Edit: Nvm... e^(ab) = (e^a)^b so then (e^ln(a))^b = a^b
 
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It will make sense only in terms of the definition of ln(x) and exp(x) being inverse operations.

Intuition with inverse operations and functions is a bit different from what you may be used to.

It's more like (sin(arcsin(x)) = x
 
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Yea I was doing a problem that had gotten simplified down to y = (1/2) e^[(ln(10/5))*t] and couldn't figure out how they got to y= (1/2)*10^(t/5) but then I remembered x^(ab) = (x^a)^b... ln and exp make intuitive sense to me since log base e of e... I just hit a psychological blocker since I had to apply too many rules at once.
 
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Start observing that ## \left(\ln{a}\right)\cdot b=\ln{a^{b}}##...
 
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Ssnow said:
Start observing that ## \left(\ln{a}\right)\cdot b=\ln{a^{b}}##...
Well the exponent has to stay inside the ln function so you end up with e^(ln(a^b)) but then I suppose a^b would drop down, so yea that would work too.
 

FAQ: Prove e^ln(a)*b = a^b: Intuitive Proof

What is the formula for proving e^ln(a)*b = a^b?

The formula for proving e^ln(a)*b = a^b is based on the properties of logarithms and exponents. It states that for any positive real number a and any real number b, e^ln(a)*b is equal to a^b.

Why is it important to prove e^ln(a)*b = a^b?

Proving this formula is important because it helps to understand the relationship between logarithms and exponents, which are fundamental concepts in mathematics and science. It also demonstrates the power of mathematical proofs in providing a logical and rigorous explanation for a mathematical relationship.

What is the intuitive proof for e^ln(a)*b = a^b?

The intuitive proof for e^ln(a)*b = a^b involves using the definition of logarithms and exponents to rewrite the equation as e^(ln(a)*b) = (e^ln(a))^b. Then, using the property that e^ln(x) = x, we can simplify the equation to e^(ln(a)*b) = a^b, proving the original formula.

How does proving e^ln(a)*b = a^b relate to other mathematical concepts?

Proving e^ln(a)*b = a^b is related to several other mathematical concepts, including the properties of logarithms and exponents, exponential functions, and the number e. It also has applications in calculus, specifically in the derivation of the natural logarithm and its inverse, the exponential function.

Are there any real-life applications of e^ln(a)*b = a^b?

Yes, there are several real-life applications of e^ln(a)*b = a^b. One example is in finance and compound interest calculations, where the formula is used to determine the future value of an investment. It is also used in physics and engineering, specifically in calculations involving exponential growth and decay, as well as in population growth models.

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