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Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis

Which expression is equivalent to the square root of 2 multipllied by 5 divided by 18