Question: Using f ( x , y ) = 7 x + x y . Let x = s i n ( 2 t ) and

Using f(x,y)=7x+xy. Let x=sin(2t) and y=cos(3t). Use the chain rule to find dzdt at t=0.
Using f ( x , y ) = 7 x + x y . Let x = s i n ( 2

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