数学题,拜托,help me!1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)拜托,help me!
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数学题,拜托,helpme!1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)拜托,helpme!数学题,拜托,helpme!1/
数学题,拜托,help me!1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)拜托,help me!
数学题,拜托,help me!
1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)
拜托,help me!
数学题,拜托,help me!1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)拜托,help me!
=0.5+1+1.5+...+24+24.5=612.5
每个数都等于(N-1)*0.5 (N为分母)
就=0.5+1+1.5+...+24+24.5=612.5
想要简单计,每个数×2,最后结果÷2就行了!
现在的题真够刁的!
数学题,拜托,help me!1/2+(1/3+2/3)+(1/4+2/4+3/4)+…+(1/50+2/50+3/50+…+48/50+49/50)拜托,help me!
拜托~help me
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