min=2*x1+3*x2; x1+x2>=350; x1>=100; 2*x1+x2

min=2*x1+3*x2; x1+x2>=350; x1>=100; 2*x1+x2 lingo求解min=x1^2+x1*x2+x2^2-60*x1-3*x2;结果错误 min=(4*x1^2+2*x2^2+4*x1*x2+2*x2+1)*exp(x1); 写出下面线性规划的对偶规划min Z=3X1+2X2+X3; X1+X2+X3≤6；X1-X3≥4；X2-X3≥3；X1 float x1,x2; x1=3/2; x2=x1/2; printf("%d%.1f",(int)x1,x2); 输 x1 x2是方程3x2-7x+2=0两根求x1+x2 LINGO min 45;(x1+x2) ST x1+x2>=1 x1 用matlab中ode45解方程组 x1'=-2*x1+x2 x2'=-3*x1+6*x2 初始值自定 设x1.x2是方程2x²-x-3=0的两实根,则x1+x2+x1*x2 ｛2X1-X2+3X3=3 max z=3*x1*x1-x1^3+5*x2*x2-x2^3; x1+2*x2=0; 刚接触lingo大家看看怎么不对 设3x²+2x-3=0,两根为x1,x2,求①x2/x1 + x1/x2 ②x1^2+x2^2-4x1x2