The five given vector fields are defined as:
![[Maple Math]](images/V5-99exam2n11.gif){kind=small}
![[Maple Math]](images/V5-99exam2n12.gif){kind=small}
![[Maple Math]](images/V5-99exam2n13.gif){kind=small}
![[Maple Math]](images/V5-99exam2n14.gif){kind=small}
![[Maple Math]](images/V5-99exam2n15.gif){kind=small}