IN N . N We have given a surface S delimited by the three coordinate planes and the planes x = a = 4, y : b = 3 and z = c = 7, and a vector field sin ( 4 . y2 + 7) + x F = y + sin (3 . x2 + 3) z + sin (4 . y2 + 7 . a2) Calculate the flux F . N ds out of the box S