用c语言编写三元二次方程组的求解答:你都已经把x y z的公式写出来了,我就直接用了。include <stdio.h> int main(){ int a,b,c,d1,d2,d3,d4;double x,y,z;printf("请输入a b c d1 d2 d3 d4:\n");scanf("%d %d %d %d %d %d %d",&a,&b,&c,&d1,&d2,&d3,&d4);//乘以1.0是为了将整数转成浮点...
一道三元二次方程组数学题答:x^2=6+(z-y)^2变换为x^2-(z-y)^2=6,其他两式同理.再根据平方差公式打开,(x+y-z)(x-y+z)=6,(-x+y+z)(x+y-z)=2,(-x+y+z)(x-y+z)=3,为了方便,把(x+y-z)设为A,(x-y+z)设为B,(-x+y+z)设为C.则A*B=6,AC=2,BC=3,可导出C方=1,再根据xyz与ABC的...