Problem $2$: Streamlines and pathlines $($steady flow field$)$

A steady velocity field is given by

u$=2$xy$^(2)$hat$($i$)-(2)/(3)$y$^(3)$hat$($j$)$

Determine the streamlines and the pathlines. $(2$ pts$)$

Show that they are the same for this steady flow. $(2$ pts$)$