Question: Let f ( x , y ) = s i n ( x 2 y ) . Evaluate f x y ( 1 , 2

Let f(x,y)=sin(x2y). Evaluate fxy(1,2) exactly.
(A)0
(B)
(C)-2
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(E) Other:
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Let f ( x , y ) = s i n ( x 2 y ) . Evaluate f x

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