We present a solution to a very interesting differential equation. In particular, we find a solution to the differential equation f'(x)=f^(-1)(x). That is, we answer the question: When is the derivative of a function the same as its inverse?

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Abstract Algebra:

Judson(online): http://abstract.ups.edu/
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Gallian: https://amzn.to/2zg4YEo
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Number Theory:

Crisman(online): http://math.gordon.edu/ntic/
Strayer: https://amzn.to/3bXwLah
Andrews: https://amzn.to/2zWlOZ0

Calculus:

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