Compute the dual solution corresponding to each of the following basic sets in the standard-

form LP max 6x1 + 1x2 + 21x3 - 54x4 - 8x5 s.t. 2x1 + 5x3 + 7x5 = 70

+ 3x2 + 3x3 - 9x4 + 1x5 = 1 x1,

c, x5 Ú 0

(a) 5x1, x26

(b) 5x1, x46

(c) 5x2, x36

(d) 5x3, x56