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Solve the Problem uy\frac { \partial \mathrm { u } } { \partial \mathrm { y } }

Question 324

Multiple Choice

Solve the problem.
-Evaluate uy\frac { \partial \mathrm { u } } { \partial \mathrm { y } } at (x,y,z) =(2,3,0) ( \mathrm { x } , \mathrm { y } , \mathrm { z } ) = ( 2,3,0 ) for the function u=epqcos(r) ;p=1x,q=x2lny,r=z\mathrm { u } = \mathrm { epq } \cos ( \mathrm { r } ) ; \mathrm { p } = \frac { 1 } { \mathrm { x } } , \mathrm { q } = \mathrm { x } ^ { 2 } \ln \mathrm { y } , \mathrm { r } = \mathrm { z } .


A) 0
B) 18
C) 23\frac { 2 } { 3 }
D) 6

Correct Answer:

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