Laws of Exponents: e^(x+y) = e^x·e^y

in MES Science4 years ago (edited)

In this video I go over laws of exponents and prove that e^(x+y) = e^x·e^y. In this prove I first consider the natural logarithm function, ln(x), and use log properties and laws to simplify and breakdown the function in proofing the exponent law.


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Laws of Exponents: ex+y = exey

Laws of Exponents e^(x+y).jpeg

If x and y are real numbers and r is rational, then:

  1. ex+y = exey
  2. ex-y = ex/ey
  3. (ex)r = er x

Proof:

image.png

Ln is a one-to-one function: meaning that each y-value has exactly one x-value.

image.png