1.(1+1/2)×(1+1/3)×(1+1/4)×(1+1/5).×(1+1/10)等于多少?方法.
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1.(1+1/2)×(1+1/3)×(1+1/4)×(1+1/5).×(1+1/10)等于多少?方法.
1.(1+1/2)×(1+1/3)×(1+1/4)×(1+1/5).×(1+1/10)等于多少?方法.
1.(1+1/2)×(1+1/3)×(1+1/4)×(1+1/5).×(1+1/10)等于多少?方法.
因为1+1/2=3/2
1+1/3=4/3
1+1/4=5/4
……
1+1/10=11/10
所以,原式=(3/2)*(4/3)*(5/4)*(6/5).*(10/9)*(11/10)
=11/2
1.(1+1/2+1/3+1/4)*(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4)=2.(1+1/2+1/3+1/4+1/5)*(1/2+1/3+1/4+1/5+1/6)-(1+1/2+1/3+1/4+1/5+1/6)*(1/2+1/3+1/4+1/5)=
1/6、1/3、1/2( )、5/6、1.
1.(1+1/2)×(1+1/3)×(1+1/4)×(1+1/5).×(1+1/10)等于多少?方法.
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