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Please help.Let f(x,y)=x^(2)y-3xy^(3) a. Find gradf b. Find the directional derivative of f in the direction of (:1,4:) at the point (-1,2)
Please help.Let
f(x,y)=x^(2)y-3xy^(3)
\ a. Find
gradf
\ b. Find the directional derivative of
f
in the direction of
(:1,4:)
at the point
(-1,2)
\ c. Find the direction of maximum change for
f
at the point
(-1,2)
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