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☆算术计算1题
〖1/1算式〗
作业:求算式 (1-0.293139)*7/10+(1-0.293139)*3/10*6/10+(1-0.293139)*3/10*4/10*5/10 的值.
题型:数学计算
解:
(1-0.293139)*7/10+(1-0.293139)*3/10*6/10+(1-0.293139)*3/10*4/10*5/10
=0.706861*7/10+(1-0.293139)*3/10*6/10+(1-0.293139)*3/10*4/10*5/10
=0.706861*7/10+0.706861*3/10*6/10+(1-0.293139)*3/10*4/10*5/10
=0.706861*7/10+0.706861*3/10*6/10+0.706861*3/10*4/10*5/10
=4.948027/10+0.706861*3/10*6/10+0.706861*3/10*4/10*5/10
=0.494803+0.706861*3/10*6/10+0.706861*3/10*4/10*5/10
=0.494803+2.120583/10*6/10+0.706861*3/10*4/10*5/10
=0.494803+0.212058*6/10+0.706861*3/10*4/10*5/10
=0.494803+1.272348/10+0.706861*3/10*4/10*5/10
=0.494803+0.127235+0.706861*3/10*4/10*5/10
=0.494803+0.127235+2.120583/10*4/10*5/10
=0.494803+0.127235+0.212058*4/10*5/10
=0.494803+0.127235+0.848232/10*5/10
=0.494803+0.127235+0.084823*5/10
=0.494803+0.127235+0.424115/10
=0.494803+0.127235+0.042412
=0.622038+0.042412
=0.66445 答案:(1-0.293139)*7/10+(1-0.293139)*3/10*6/10+(1-0.293139)*3/10*4/10*5/10=0.66445你的问题在这里没有得到解决?请到 热门难题 里面看看吧!