Question: Let f ( x , y ) = y s i n ( x 2 y ) . a f a t the point (

Let f(x,y)=ysin(x2y).
afat the point (-1,1,f(-1,1)).
cL(x,y)off(x,y) basedSection
14.1 Functions of Several Variables
Section 14.3 Partial Derivatives at the point (-1,1).
Section 14.4 Tangent Planes and Linear Approximations
Let f ( x , y ) = y s i n ( x 2 y ) . a f a t the

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