a)
[tex]\lim _{\theta\rightarrow-4^+}\frac{\lvert\theta\rvert}{\theta}=\frac{-4}{\theta}=\frac{-4}{-4}=1[/tex]answer: 1
b)
[tex]\lim _{\theta\rightarrow-4^-}\frac{\lvert\theta\rvert}{\theta}=\frac{-5}{\theta}=\frac{-5}{-4}=\frac{5}{4}[/tex]answer: 5/4