2009/2010=1-1/2010
观察下列计算:1/1x2=1-1/2,1/2x3=1/2-1/3,1/3x4=1/3-1/4,1/4x5=1/4-1/5
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相关问题
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观察下列式子:1-1/2=1/1x2 1/2-1/3=1/2x3 1/3-1/4=1/3x4 1/4-1/5=1/4x5
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1/1x2=1-1/2;1/2x3=1/2-1/3;1/3x4=1/3-1/4;1/4x5=1/4-1/5;..(1)1
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观察下列等式:1/1x2=1-1/2,1/2x3=1/2-1/3,1/3x4=1/3-1/4
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观察下列各式:1x2/1=1-2/1;2x3/1=2/1-3/1;3x4/1=3/1-4/1.
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1/2X3=1/2-1/3 1/3X4=1/3-1/4请根据以上规律计算:1/2X3+1/3X4+1/4X5+.+1/9
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观察下列各式:-1x1/2=-1+1/2 -1/2x1/3=-1/2+1/3 -1/3x1/4=-1/3+1/4 (1)
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解下列方程.1.1/4x-1/2=3/4 2.1/4(7x-5)=3/8 3.1/6(2x-1)=1/8(5x+1) 4
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x/2-x+1/4=3 t-t-2/4=5 7/3y+1=1/3(y-3) 2x-1/3-=1+4x/5-1 1/2(4
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解下列方程:(1)[x+1/x−1−4x2−1]=1;(2)[3x+4/3x−5+1=4x+12x−3]
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5)1/2-1/3=1/2x3 ,1/3-1/4=1/3x4.