Can anyone please help me asap with this question? I am stuck on it!

Section 13.3: Problem 3 (1 point) Consider the vector field F(x, y, z) = xi + yj + zk. a) Find a function f such that F = Vf and f(0, 0, 0) = 0. f(I, y, z) =] b) Use part a) to compute the work done by F on a particle moving along the curve C given by r(t) = (1 +2sint)i+ (1 + 2sint)j + (1 + 5sin't)k, out ? Work = Note: You can earn partial credit on this