dz dz Consider the equation sin (x + y) +4 sin(x+2)+3 sin (y + z) = 0. Find the values of and dx dy 212 dz dx (-3.-2x4) (Simplify your answer. Type an exact answer, using radicals as needed.) dz dy (-3.-2.4) (Simplify your answer. Type an exact answer, using radicals as needed.) at the point (-3x-2.4x)