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数学
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+0.99-0.98-0.97+0.96+0.95-0.94-0.93+.+0.08+0.07-0.06-0.05+0.04+0.03-0.02-0.01
人气:238 ℃ 时间:2019-09-19 07:53:46
解答
(0.99-0.98-0.97+0.96)+(0.95-0.94-0.93+0.92)+.+(0.03-0.02-0.01)=0
0.01到0.99合计99个数,四个一循环到最后余0.03-0.02-0.01三项
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1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+.+0.08+0.07-0.06-0.05+0.04+0.03-0.
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+``````+0.08+0.07-0.06-0.05+0.04+0.03-0.2-0.1=
0.01+ 0.02 +0.03 +0.04 +0.05+ 0.06 +. 0.94+ 0.95+ 0.96 +0.97 +0.98+ 0.99=( )
1+0.99-0.98-0.97+0.96+0.95-0.94-0.93+...+0.04+0.03-0.02-0.01简便运算
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