1,观察下面算式,找规律并填空 :1/2*1=1-1/2 1/2*3=1\2-1/3 .根据以上规律解答下题：若有理数a,b满足|a-1|+（b-3）² =0 试求 1/ab+1/(a+2)(b+2)+1/(a+4)(b+4)+.+1(a+100)(b+100) 的值 2 (1-1/100)(1-1/99)(1-1/98).(1-1/3) 3

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