EDB — 0Y5

Exercises

1. [0Y5]Consider the map

   \begin{eqnarray*} Φ : ℝ/2𝜋 & →& S^ 1\\ {} [t] & ↦ & (\cos (t),\sin (t)) \end{eqnarray*}

   Show that it is well-defined and bijective.

   Solution 1

   [0Y6]↺↻