5. Which of the following sets S are polyhedra? If possible, express S in the form S = {x | Ax 3 b, Fx = g}. (a) S= {x € R" | x = 0, 1"x = 1, E-1 T;a; = b1, 1 T;a? = b2}, where a1, ..., a, e R and b1, b2 E R. (b) S = {r € R" | x > 0, x™y < 1 for all y with ||y||2 = 1}. (c) S = {x € R" | x > 0, x™y < 1 for all y with E \y| = 1}.

Advanced Engineering Mathematics
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ISBN:9780470458365
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5. Which of the following sets S are polyhedra? If possible, express S in the form S = {x | Ax < b, Fx = g}.
(a) S= {r € R" | x > 0,1" x = 1, E1 ¤;Q; = b1, E1 T;a} = b2}, where a1, ..., an e R and b1, b2 E R.
(b) S = {r € R" | x > 0, x™y < 1 for all y with ||y||2 = 1}.
(c) S = {r € R" | x > 0, x™y < 1 for all y with ly:| = 1}.
Transcribed Image Text:5. Which of the following sets S are polyhedra? If possible, express S in the form S = {x | Ax < b, Fx = g}. (a) S= {r € R" | x > 0,1" x = 1, E1 ¤;Q; = b1, E1 T;a} = b2}, where a1, ..., an e R and b1, b2 E R. (b) S = {r € R" | x > 0, x™y < 1 for all y with ||y||2 = 1}. (c) S = {r € R" | x > 0, x™y < 1 for all y with ly:| = 1}.
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