孟买血型怎么检测:证:1+2^(-3/2)+3^(-3/2)+4^(-3/2)……<3
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1+2^(-3/2)+3^(-3/2)+4^(-3/2)……<3
2^(-3/2)+3^(-3/2)+4^(-3/2)……<2
证:1+2^(-3/2)+3^(-3/2)+4^(-3/2)……<3
3^3+2^3/3^3+1^3=3+2/3+1,
(2-1/2)*(2-2/3)*(2-3/3)*(2-3/4)*...*(2-2004/2005)
1+1/(1+2)+1/(1+2+3)+...+1/(1+2+3+...+100)
1+1/1+2+1/1+2+3+......+1/1+2+3+......+10
1/(2*2)+1/(3*3)
3/2,2/3,3/4,1/3,3/8,( )
1/2,1/3,2/3,6/3,( ),18/3
3/2=2+1/1*2=1/1+1/2
(1-1/2^2)(1-1/3^2)....(1-1/10^2)