... <看更多>

If f(x,y)= 53x3+5x2y−5y3 and u=⟨35,45⟩ Find D2uf(2,1). ... <看更多>

... calculate the directional derivative of the function. f (x, y, z) = x z + sin (x z + y). at the point [−4, −2, −2] in the direction ... ... <看更多>