- #1
Yezman
- 6
- 0
If f(x,y) = Sqrt[x^4 + y] and x = s^2 + t^2 + 1 and y = t^2 +t*Cos(2s)
How do i find
Partial f
--------
Partial tI made the tree diagram how f depends on x and y, which both depend on s and t... so on my test I said it was
(Partials of all of these)f/x*x/s*x/t + f/y*y/s*y/tLooking back now I wonder why I put the s's in there, seems like I don't need them. (this was from a recent test and we get to redo 1 problem). My new idea is
f/x*x/t + f/x*x/t ? That seems to simple though
Can someone here point in the right direction?
Thanks
How do i find
Partial f
--------
Partial tI made the tree diagram how f depends on x and y, which both depend on s and t... so on my test I said it was
(Partials of all of these)f/x*x/s*x/t + f/y*y/s*y/tLooking back now I wonder why I put the s's in there, seems like I don't need them. (this was from a recent test and we get to redo 1 problem). My new idea is
f/x*x/t + f/x*x/t ? That seems to simple though
Can someone here point in the right direction?
Thanks