4,3/2,20/27,7/16,36/125,( A.39/144 B.11/54 C.68/196 D.7
4,3/2,20/27,7/16,36/125,( A.39/144 B.11/54 C.68/196 D.7
2.4,3/2,20/27,7/16,36/125,( )A.39/144 B.11/54 C.68/196 D.7
4, 3/2, 20/27, 7/16, 36/125,()A.39/144 B11/54 C.68/196 D.7答案
3a+b=11 3d+b=11 3b+a=9 a+2b+d=8 a+2c+b=21 a+2b+d=8 b+2d+a=7
A B C D 1 2 3 4 8 7 6 5 9 10 11 12 16 15 14 13 .问1100在A.B.C.
4/3,1,2,7,( ) A、27 B、21 C、18 D、24
A+B+C+D=10 A+B=3 B+D=7 A+A=2 C+1=D谁能算出这个题?
解方程组:a+b+c+d=10,4a+3b+2c+d=20,a-b+c-d=-2,2a-b+4c-3d=0 四元一次,我
C语言 int a;int b; }d[3] ={{1,4},{2,5},{6,7}}; printf("%d\n",d
a+2b+c=7 b+2c+d=10 c+2d+a=15 3d+4a+5b=32 三元一次方程组,
a,b,c,d>0 证(a/(b+2c+3d))+(b/(c+2d+3a))+(c/d+2a+3b))+(d/(a+2b
a+b=3/5 a+d=3/7 d+c=2/5