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Find hzxy(x,y,z)h _ { z x y } ( x , y , z )

Question 103

Multiple Choice

Find hzxy(x,y,z) h _ { z x y } ( x , y , z ) for the function h(x,y,z) =e9xcos(y+7z) h ( x , y , z ) = e ^ { 9 x } \cos ( y + 7 z ) .
Select the correct answer.


A) 63e9xcos(y+7z) 63 e ^ { 9 x } \cos ( y + 7 z )
B) 49e9xsin(y+7z) 49 e ^ { 9 x } \sin ( y + 7 z )
C) 63e9xsin(y+7z) - 63 e ^ { 9 x } \sin ( y + 7 z )
D) 49e9xcos(y+7z) - 49 e ^ { 9 x } \cos ( y + 7 z )

Correct Answer:

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