1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100)怎么算拜托了各位
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1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100)怎么算拜托了各位1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+
1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100)怎么算拜托了各位
1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100)怎么算拜托了各位
1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100)怎么算拜托了各位
1/x(x+1)+1/(x+1)(x+2)+1/(x+2)(x+3)+.1/(x+99)(x+100) =1/x-1/x+1+1/(x+1)-1/(x+2)+1/(x+2)-1/(1+3)+.+1/(x+99)-1/(x+100) =1/x-1/(x+100)
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