Which expression has the same sum as the one below?
-15+6
Su
15+6
-6+(-15)
15+(-6)
6+(-15)

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