Practice problem
Find aaa (to the nearest whole number) if Du(1,2)=9.11D_u(1,2)=9.11Du(1,2)=9.11 for f(x,y)=x2+4xy−y2f(x,y)=x^2+4xy-y^2f(x,y)=x2+4xy−y2 and v=<a,1>\textbf{v}=<a,1>v=<a,1>.
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Type a concept, like “slope” or “photosynthesis”.
