(1-1/2*2)(1-1/3*3)(1-1/4*4)……(1-1/2000 *2000)(1-1/2001*2001)=(1*3/2*2)(2*4/3*3)(3*5/4*4)……(1999*2001/2000 *2000)(2000*2002/2001*2001)=2/2001
(1-1/2*2)(1-1/3*3)(1-1/4*4)……(1-1/2000 *2000)(1-1/2001*2001)
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相关问题
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1/2/3+1/3/4+1/4/5+1/5/6+.+1/2000/2001+1/2001/2002=?
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1/1*2+1/2*3+1/3*4+...+1/2000*1/2001=
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1+1/2*3+1/3*4+1/4*5+1/5*6+.+1/2000*2001+1/2001*2002
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1/1*2+1/1*3+1*3*4+……+1/2000*1/2001
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(1*1+2*2)/(1*2)+(2*2+3*3)/(2*3)+……+(2000*2000+2001*2001)/(20
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(1/2+1/3+.+1/2000+1/2001)-(1+1/2+1/3+..+1/2001)(1/2+1/3+...+
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1+2+3+4+5+……+2000+2001=
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数学简便计算(讲解)(1/1*2)+(1/2*3)+(1/3*4)......(1/2000*2001)=
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|1/2002-1/2001|+|1/2001-1/2000|+...+|1/2-1|
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|1/2001-1/2000|+|1/2000-1/1999|-|1/1999-1/2001|=?