[(2/3-1/4)÷5/6+4/5]X5/11
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[(2/3-1/4)÷5/6+4/5]X5/11[(2/3-1/4)÷5/6+4/5]X5/11[(2/3-1/4)÷5/6+4/5]X5/1113/2222分之13
[(2/3-1/4)÷5/6+4/5]X5/11
[(2/3-1/4)÷5/6+4/5]X5/11
[(2/3-1/4)÷5/6+4/5]X5/11
13/22
22分之13
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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.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2}
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
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+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
如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 x x x
8x-[-3x-(2x-7x-5)+3]+4x化简
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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1).1/x²-3x+2 + 1/x²-5x+6 + 1/x²-4x+32).x-1/x²+3x+2 + 6/2+x-x² -(10-x)/4-x²3).(x+1-1/1-x)÷(x-x²/x-1)4).(x²-4/x²-x-6 +x+2/x-3)÷(x+1)/(x-3)5).x/x-y ·y²/x+y - x^4y/x^4-y^4
解决数独问题x 1 x 7 x x x 3 xx x x x 4 x 2 x x9 x 3 6 x 8 7 x 58 x x x x 9 x x xx x 2 x 5 x x x 4x 3 x x x x 6 x xx x x x x x x x 26 x x x x x x x 7x 5 4 1 7 x 9 8 x这道题我用了很多办法都没有头绪,请帮忙的朋友把解题的思
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