Find the four second partial derivatives. Observe that the second mixed partials are equal. z = x4 - 9xy + 3y3 Z= X a2z ах2 a2z Әх у azz ду? a2z дудх 11 11 11 "I X хх
Find the four second partial derivatives. Observe that the second mixed partials are equal. z = x4 - 9xy + 3y3 Z= X a2z ах2 a2z Әх у azz ду? a2z дудх 11 11 11 "I X хх
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter9: Multivariable Calculus
Section9.3: Maxima And Minima
Problem 20E
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![Find the four second partial derivatives. Observe that the second mixed partials are equal.
z = x4 - 9xy + 3y3
J2z
0х2
a2z
Әхду
a2z
ду2
a2z
дудх
11
=
11
X
Х
X X](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F44f6e5f3-0688-4380-ac70-a4dd557ffbc7%2F736f26f6-6fa2-4be8-9cea-b3fba2dd6aa1%2Fpq8lbd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Find the four second partial derivatives. Observe that the second mixed partials are equal.
z = x4 - 9xy + 3y3
J2z
0х2
a2z
Әхду
a2z
ду2
a2z
дудх
11
=
11
X
Х
X X
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