Find fx(x, y).f(x, y) = y ln (4x + 9y)
A. fx(x, y) = ln (4x + 9y) + 
B. fx(x, y) = 
C. fx(x, y) = y ln (4x + 9y)
D. fx(x, y) = 
Answer: B
Mathematics
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A. y = 2 sin 
x
B. y = 3 sin 
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.
 multiple choice.png)
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