2·4(4·3-X)=6
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2·4(4·3-X)=62·4(4·3-X)=62·4(4·3-X)=6
2·4(4·3-X)=6
2·4(4·3-X)=6
2·4(4·3-X)=6
两道初二数学计算题(1)x+6/x^2+2x+1-x+4/x^2+x=0(2)x+3/x÷x^2+3x/x-3·1/3-x
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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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1/x(X+2)+1/x(x+2)(X+4)+1/(X+4)(x+6)+···+1/(x+2000)(x+2002)
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x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?