Answer to Question #43934 in Integral Calculus for DEEPU SINGH

Question #43934

Find the directional derivative of
f(x,y) = (2 x y2)/(x2 + y2) , (x,y) not equal to (0,0)
=0 , (x,y) = (0,0) .
at (0,0) in the direction thita= (pi)/3 .

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