42X(1/8+1/24+1/48+1/80+1/120+1/168)求解
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42X(1/8+1/24+1/48+1/80+1/120+1/168)求解42X(1/8+1/24+1/48+1/80+1/120+1/168)求解42X(1/8+1/24+1/48+1/80+1/1
42X(1/8+1/24+1/48+1/80+1/120+1/168)求解
42X(1/8+1/24+1/48+1/80+1/120+1/168)求解
42X(1/8+1/24+1/48+1/80+1/120+1/168)求解
42X(1/8+1/24+1/48+1/80+1/120+1/168
=42*1/8*(1+1/3+1/6+1/10+1/15+1/21)
=42*1/8*(1+1/3+1/6+1/6+1/21)
=1/8*(42+14+7+7+2)
=1/8*72
=9
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1
1/(1-x)+1/(1+x)+2/(1+x*x)+4/(1+x*x*x*x)+8/(1-x*x*x*x*x*x*x*x)怎么做
解方程X-1/5X=24 X-1/8X=42 X-1/9X=64
请大神帮我解这个数独 题,我解了很久 了 ,最后 X X X X 3 X 1 5 XX X X X 7 8 6 X 92 9 X X X X X X 7X X X X 6 X 2 X 3X 1 3 7 2 9 4 8 X4 X 2 X 8 X X X X3 X X X X X X 6 48 X 6 3 9 X X X X X 7 1 X 4 X X X X
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x+(1-x)/x-1/x
24道符号^表示平方1,x^+21x+202,x^-8x-203,x^+8x-204,x^-8x-335,x^-4x-326,x^-14x+337,x^+49x+488,x^-14x+489,x^-2x-4810,x^+22x-4811,x^-19x+4812,x^-16x+4813,x^+8x-4814,x^-29x+10015,x^+x-7216,x^+32x-3317,x^-21x-10018,x^+4x+319,x^-6x+520,x^+15x+2621,x^
求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X
x/x-2 - 8/x²-4 =1/x+2x/x-2 - 1=1/x²-42/x²-1 - 1/x-1=1
难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6
(1){[(x^2)+7x+10]/[(x^3)-(x^2)-6x]}*{[(x^2)-2x-3]/[(x^2)+6x+5]}(2){[(x^2)-7x+6]/[(x^2)+3x-4]}/{[(x^2)-14x+48]/[(x^2)+10x+24]}*{[(x^3)-(8x^2)]/[(x^2)y+6xy]}(3){[8-6x+(x^2)]/[(x^2)-16]}/{[(x-2)/(4-3x)]^2}*{[(x^2)+2x-8]/[(3x^2)-13x+12]}(4){[(a^2)+ab-ac]
[1/(x-1)(x+2)]+[1/(x+2)(x+5)]+[1/(x+5)(x+8)]+[1/(x+8)(x+11)]=(1/3x-3)-1/24
matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24));
matlab解决约束非线性规划问题myfun.mfunction f=myfun(x)f=x(1)*x(13)+x(2)*x(14)+x(3)*x(15)+x(25)+1.697*(x(4)*x(16)+...x(5)*x(17)+x(6)*x(18)+x(26))+0.575*(x(7)*x(19)+x(8)*x(20)...+x(9)*x(21)+x(27))+0.723*(x(10)*x(22)+x(11)*x(23)+x(12)*x(24));
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