EDB — 1CB

Exercises

1. [1CB] Prerequisites:[1C8]↺↻.

   Let \(I⊆ ℝ\) be an open interval. Let \(f:I→ℝ\) be a differentiable function such that \(f'(t)≠ 0\) for every \(t∈ I\): show then that \(f'(t)\) has always the same sign.

   Solution 1

   [1CC]↺↻