For $\displaystyle n\in\mathbb{Z}$ and a fixed $\displaystyle t\in\mathbb{T}$, the unit circle in the complex plane,
How can I show that $\displaystyle \overline{t}^n$ can be written as a linear combination of powers (in Z) of t?
For $\displaystyle n\in\mathbb{Z}$ and a fixed $\displaystyle t\in\mathbb{T}$, the unit circle in the complex plane,
How can I show that $\displaystyle \overline{t}^n$ can be written as a linear combination of powers (in Z) of t?