Fluid Mechanics- Math help

DEAR MATHTARDS

I have to resit my 2nd year university course in fluid mechanics tomorrow

can someone please help me solve and understand problems in streamlines,streaklines and stream functions

if im given u=(xzt,y+t,z) what are the streamline equations and when i have them how do i solve them?

us mathtards dont have any idea what u=(xzt,y+t,z) is (maybe a velocity function?)

if you want help from mathtards, use math terms, not phsyics shit. what is a streamline/streakline? partial derivative or flux map?

also, are you really doing 3-dimensional streamline problems or are you just stupid?