Section 1 - Exponential Functions of a Real Variable

Positive integer exponents correspond to repeated multiplication, negative exponents correspond to division, and fractional exponents to taking roots, but in applications like the radiation example we may want to consider expressions like 2^t (i.e. two to the power t) for arbitrary real values of the exponent t. But what does this mean when t is irrational? 
In this section you will answer that question and learn more about the function so defined.

What to do

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