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ÒÅ´«Ëã·¨±à³ÌÎÊÌ⣺minF=x1^2+2(x2^2)x3+2x3
                              s.t. x1^2+x2+x3^2=4,
                                   x1^2-x2+2x3<=2,
                                  x1,x2,x3>=0.
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