Giải bài toán qui hoạch tuyến tính: f(x) = 2x1 − 2x2 + x3 (Max)
x1 + 2x2 ≤ 3
2x1 − 3x2 + x3 ≤ 2
x1, x2, x3 ≥ 0.

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days