Question

Find all second partial derivatives of the function:

f(x,y) = x^{2}y - 3xy^{3}

Answer #1

Find all the second order partial derivatives of the
function
w = x - y / x2 + y

Find the first- and second-order partial derivatives for the
following function. z = f (x, y) = (ex +1)ln y.

compute partial derivatives df/dx and df/dy, and all second
derivatives of the function:
f(x,y) = [4xy(x^2 - y^2)] / (x^2 + y^2)

Calculate all four second-order partial derivatives for the
function f(x,y)=3+6x2y2 ?

part 1)
Find the partial derivatives of the function
f(x,y)=xsin(7x^6y):
fx(x,y)=
fy(x,y)=
part 2)
Find the partial derivatives of the function
f(x,y)=x^6y^6/x^2+y^2
fx(x,y)=
fy(x,y)=
part 3)
Find all first- and second-order partial derivatives of the
function f(x,y)=2x^2y^2−2x^2+5y
fx(x,y)=
fy(x,y)=
fxx(x,y)=
fxy(x,y)=
fyy(x,y)=
part 4)
Find all first- and second-order partial derivatives of the
function f(x,y)=9ye^(3x)
fx(x,y)=
fy(x,y)=
fxx(x,y)=
fxy(x,y)=
fyy(x,y)=
part 5)
For the function given below, find the numbers (x,y) such that
fx(x,y)=0 and fy(x,y)=0
f(x,y)=6x^2+23y^2+23xy+4x−2
Answer: x= and...

Find the four second partial derivatives of f(x, y) = 2x^5y^2 +
x^2 y. please show all work

Compute all second order partial derivatives of f(x, y) = x^4 −
2x ^3 y^2

Find all first derivatives of the function:
f(x,y) = (x+y)/(x-y)

(1 point)
Find all the first and second order partial derivatives of
f(x,y)=7sin(2x+y)−2cos(x−y)
A. ∂f∂x=fx=∂f∂x=fx=
B. ∂f∂y=fy=∂f∂y=fy=
C. ∂2f∂x2=fxx=∂2f∂x2=fxx=
D. ∂2f∂y2=fyy=∂2f∂y2=fyy=
E. ∂2f∂x∂y=fyx=∂2f∂x∂y=fyx=
F. ∂2f∂y∂x=fxy=∂2f∂y∂x=fxy=

2. (a)
Determine all first and second order partial derivatives of
f(x,y,z) = x2y3 sin(xz)
(b) Determine all first-order partial derivatives of
g(x,y,z)=u2y+x2v where u=exz,
v=sin(yz)

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