Explanation
[tex]\begin{gathered} \text{Given the below function} \\ y=2^x \\ \text{y = (}\frac{1}{2})^x \\ \text{According to the law of indicies} \\ (\frac{1}{x})^a=x^{-a} \\ \text{Therefore,} \\ y\text{ = (}\frac{1}{2})^x=2^{-x} \\ y=2^x \\ \text{y = 2}^{-x} \\ The\text{ second function is an inverse of the first function} \end{gathered}[/tex]ALSO
