Find the second partial derivative fry of z = f(x, y) = 12x³y - 8x. A) 36x2 - 8 B) 36x2y4 Write the answer as a letter A,B,C, or D. C) 144x²y Question 22 (4 points) Find extremum of value of f(x, y) = 3xy subject to 2x + 3y = 24 minimum of 48 at (6,6) D) 144x²y³

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
Section9.2: Partial Derivatives
Problem 28E
Question
Find the second partial derivative fry of z = f(x, y) = 12x³y - 8x.
A) 36x2 - 8
B) 36x2y4
Write the answer as a letter A,B,C, or D.
C) 144x²y
Question 22 (4 points)
Find extremum of value of f(x, y) = 3xy subject to 2x + 3y = 24
minimum of 48 at (6,6)
D) 144x²y³
Transcribed Image Text:Find the second partial derivative fry of z = f(x, y) = 12x³y - 8x. A) 36x2 - 8 B) 36x2y4 Write the answer as a letter A,B,C, or D. C) 144x²y Question 22 (4 points) Find extremum of value of f(x, y) = 3xy subject to 2x + 3y = 24 minimum of 48 at (6,6) D) 144x²y³
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