Resposta :
[tex]\Large\boxed{\begin{array}{l}\tt a)\\\sf V_{max}=3\\\tt b)\\\sf V_{min}=-1\\\tt c)\\\sf p=\pi\\\tt d)\\\sf Im=[-1,3]\end{array}}[/tex]
[tex]\Large\boxed{\begin{array}{l}\tt a)\\\sf V_{max}=3\\\tt b)\\\sf V_{min}=-1\\\tt c)\\\sf p=\pi\\\tt d)\\\sf Im=[-1,3]\end{array}}[/tex]