===== Aula de 24/05 =====

  - Calcule os seguintes limites:
    - $\lim\limits_{x \to -4} \frac{sen(\pi )}{x^2 - 16}$
    - $\lim\limits_{x \to 0} \frac{sen(2x) + 7x^2 -2x}{x^2(x + 1)^2}$ 
    - $\lim\limits_{x \to 0}\frac{\tan(x) - x}{x^3}$