Say whether or not each of the following is a linear program. If it is a linear program, then reformulate it in standard inequality form, giving the values of the vectors c and b, and the matrix A. If it is not a linear program, write a sentence or two explaining why.

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Chapter2: Second-order Linear Odes
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(c)
minimize
subject to x1 + x2 + x3 = 1,
X2 ≤ x3,
X1 − X3 ≥ −5,
-
X1, X3 ≥ 0,
x1 + 2x2 3x3
2 unrestricted
Transcribed Image Text:(c) minimize subject to x1 + x2 + x3 = 1, X2 ≤ x3, X1 − X3 ≥ −5, - X1, X3 ≥ 0, x1 + 2x2 3x3 2 unrestricted
Say whether or not each of the following is a linear program. If it is a linear program,
then reformulate it in standard inequality form, giving the values of the vectors c
and b, and the matrix A. If it is not a linear program, write a sentence or two
explaining why.
Note: to make your answers easier to mark, please order your vector of vari-
ables by subscript. If 2 variables have the same subscript (because you have
split a variable x; into x and x) list x first followed by x. For example:
x¹ = (x1, x2, x3, x, x, x5) is ordered as described.
Transcribed Image Text:Say whether or not each of the following is a linear program. If it is a linear program, then reformulate it in standard inequality form, giving the values of the vectors c and b, and the matrix A. If it is not a linear program, write a sentence or two explaining why. Note: to make your answers easier to mark, please order your vector of vari- ables by subscript. If 2 variables have the same subscript (because you have split a variable x; into x and x) list x first followed by x. For example: x¹ = (x1, x2, x3, x, x, x5) is ordered as described.
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