Use the Mean Value Theorem to find upper and lower bounds for the following:

 

(a) S SSB ---2dV, donde B = {(x, y, z): 1 x 2, -1 y 2, -3 z -2} (b) S SSB In(2+x+y+z) dV, donde B = {(x,y,z): 0x 4,0 y 8,0 = 4}.