总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 20*0.1^6-164*0.1^5+515*0.1^4-780*0.1^3+590*0.1^2-200*0.1+39 的值.
题型:数学计算
解:
20*0.1^6-164*0.1^5+515*0.1^4-780*0.1^3+590*0.1^2-200*0.1+39
=20*0.000001-164*0.1^5+515*0.1^4-780*0.1^3+590*0.1^2-200*0.1+39
=20*0.000001-164*0.00001+515*0.1^4-780*0.1^3+590*0.1^2-200*0.1+39
=20*0.000001-164*0.00001+515*0.0001-780*0.1^3+590*0.1^2-200*0.1+39
=20*0.000001-164*0.00001+515*0.0001-780*0.001+590*0.1^2-200*0.1+39
=20*0.000001-164*0.00001+515*0.0001-780*0.001+590*0.01-200*0.1+39
=0.00002-164*0.00001+515*0.0001-780*0.001+590*0.01-200*0.1+39
=0.00002-0.00164+515*0.0001-780*0.001+590*0.01-200*0.1+39
=0.00002-0.00164+0.0515-780*0.001+590*0.01-200*0.1+39
=0.00002-0.00164+0.0515-0.78+590*0.01-200*0.1+39
=0.00002-0.00164+0.0515-0.78+5.9-200*0.1+39
=0.00002-0.00164+0.0515-0.78+5.9-20+39
=-0.00162+0.0515-0.78+5.9-20+39
=0.04988-0.78+5.9-20+39
=-0.73012+5.9-20+39
=5.16988-20+39
=-14.83012+39
=24.16988 答案:20*0.1^6-164*0.1^5+515*0.1^4-780*0.1^3+590*0.1^2-200*0.1+39=24.16988你的问题在这里没有得到解决?请到 热门难题 里面看看吧!