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# Exponential Functions

From compound interest to bubonic plague, things that grow or spread really fast are often modeled by exponential functions. Learn about these powerful functions (pun intended?).

Evaluate \[\large \left(\frac{1}{256} \right)^{-\frac{5}{8 }}.\]

If \( a>0 \), simplify

\[ \left( a^{\frac{2}{3}} + a^{-\frac{1}{3}} \right)^3 + \left( a^{\frac{2}{3}} - a^{-\frac{1}{3}} \right)^3. \]

Evaluate

\[ \left( \sqrt{2 + \sqrt{3}} - \sqrt{2 - \sqrt{3}} \right)^{\frac13}. \]

If \( x = \dfrac{3^{\frac{1}{5}} + 3^{ -\frac{1}{5}} }{2} \), evaluate

\[ \left( x + \sqrt{x^2 - 1} \right)^{10}. \]

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