Consider the following. f(x,y)=x²eʸ,P(7,0), U= 1/5(3i−4j).
a) Find the gradient of f.
A)∇f=⟨2xeʸ,x²eʸ⟩
B)∇f=⟨2xeʸ,0⟩
C)∇f=⟨0,x²eʸ⟩
D)∇f=⟨2xeʸ,2xeʸ⟩