Question: 2) a) Let f(x, y) = arctan(x + y) and D(P)=Vf(P).. Find the direction = cosi+sine for which Df(0,1) = 1 2 (15

2) a) Let f(x, y) = arctan(x + y) and D(P)=Vf(P).. Find

2) a) Let f(x, y) = arctan(x + y) and D(P)=Vf(P).. Find the direction = cosi+sine for which Df(0,1) = 1 2 (15

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