(1).(x/x-1)*(x^2-1/x^2) (2).(a^2-b^2/ab)除以(1).(x/x-1)*(x^2-1/x^2)(2).(a^2-b^2/ab)除以(a-b)^2(3).(m-2/m^2-2m+1)除以m^2-4/m^2-1
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(1).(x/x-1)*(x^2-1/x^2)(2).(a^2-b^2/ab)除以(1).(x/x-1)*(x^2-1/x^2)(2).(a^2-b^2/ab)除以(a-b)^2(3).(m-2/m^
(1).(x/x-1)*(x^2-1/x^2) (2).(a^2-b^2/ab)除以(1).(x/x-1)*(x^2-1/x^2)(2).(a^2-b^2/ab)除以(a-b)^2(3).(m-2/m^2-2m+1)除以m^2-4/m^2-1
(1).(x/x-1)*(x^2-1/x^2) (2).(a^2-b^2/ab)除以
(1).(x/x-1)*(x^2-1/x^2)
(2).(a^2-b^2/ab)除以(a-b)^2
(3).(m-2/m^2-2m+1)除以m^2-4/m^2-1
(1).(x/x-1)*(x^2-1/x^2) (2).(a^2-b^2/ab)除以(1).(x/x-1)*(x^2-1/x^2)(2).(a^2-b^2/ab)除以(a-b)^2(3).(m-2/m^2-2m+1)除以m^2-4/m^2-1
(1)(x+1)/x
(2)(a+b)/(a-b)ab
(3)(m+1)/(m-1)(m+2)
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
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*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
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