Slader Let R be an equivalence relation on A, and suppose [a] and [b] are two equivalence classes of R. Show that if [a] and [b] are not disjoint, then [a] = [b].

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