1/(5*8)+1/(8*11)+1/(11*14)+L+1/(98*101)答案,以及L的含义L的意思能确定L的意思吗
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1/(5*8)+1/(8*11)+1/(11*14)+L+1/(98*101)答案,以及L的含义L的意思能确定L的意思吗
1/(5*8)+1/(8*11)+1/(11*14)+L+1/(98*101)答案,以及L的含义
L的意思
能确定L的意思吗
1/(5*8)+1/(8*11)+1/(11*14)+L+1/(98*101)答案,以及L的含义L的意思能确定L的意思吗
1/(5*8)+1/(8*11)+1/(11*14)+L+1/(98*101)
=(1/5-1/8+1/8-1/11+1/11-1/14+.+1/98-1/101)*1/3
=(1/5-1/101)*1/3
=32/505
L的意思是按照前面的规律,省略记录补全
1/3[(1/5-1/8)+(1/8-1/11)+…+(1/98-1/101)]
=32/505
L是…
1/(5*8)+1/(8*11)+.+1(98*101)
找规律1,5,4,8,11,14,(),().
找规律填空 5,8,11,15( ) 1,1,2,3,5,8( ),21
找规律:1/3,2/5,1/7(),1/11,() 1/2,(),1/8,1/16,()
1/(5x8) + 1/(8x11) + 1/(11x14) + 1/(14x17) + 1/(17x20)
5又3/11-(2.375-1又8/11)-3又5/8
如何简算 11/12-(1/6+5/8)?
(3/8-5/6+11/12)÷1/24
一道数学找规律1 4 9 16 ()()1 5 8 11 ()()
8X-1/3=1/9(方程) 3/8×()/()=11/5×()/()=1/6+( )/( )=()/()-()1/6=1
1/(2*5)+1/(5*8)+1/(8*11)+.+1/(2006*2009)+1/(2009*2012)怎么做?
简便运算1/(2*5)+1/(3*5)+1/(8*11)+……+1/(20*23)=
能简算的要简算 (5)(5+5/8)×3/5 (6)12×(2/11-1/12)×11(5)(5+5/8)×3/5(6)12×(2/11-1/12)×11
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计算1/5x8 + 1/8x11 + 1/11x14 + 1/14x17 + 1/17x201/(5x8) + 1/(8x11) + 1/(11x14) + 1/(14x17) + 1/(17x20)