Find the Indicated Partial Derivative $f ( x , y ) = x ^ { 2 } y ^ { 4 } - 3 x ^ { 4 } y ; f _ { m x }$

question 32

Multiple Choice

Find the indicated partial derivative. $f ( x , y ) = x ^ { 2 } y ^ { 4 } - 3 x ^ { 4 } y ; f _ { m x }$

• A) \(f _ { m x } = 12 x ^ { 2 } y\)
• B) \(f _ { m x } = - 36 x y\)
• C) \(f _ { m x } = 3 x y\)
• D) \(f _ { m x } = - 72 x y\)
• E) \(f _ { m x } = - 3 x y\)