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*(1/3)^6-164*(1/3)^5+515*(1/3)^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39 的值.
题型:数学计算
解:
20*(1/3)^6-164*(1/3)^5+515*(1/3)^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39
=20*0.333333^6-164*(1/3)^5+515*(1/3)^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39
=20*0.333333^6-164*0.333333^5+515*(1/3)^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39
=20*0.333333^6-164*0.333333^5+515*0.333333^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39
=20*0.333333^6-164*0.333333^5+515*0.333333^4-780*0.333333^3+590*(1/3)^2-200*(1/3)+39
=20*0.333333^6-164*0.333333^5+515*0.333333^4-780*0.333333^3+590*0.333333^2-200*(1/3)+39
=20*0.333333^6-164*0.333333^5+515*0.333333^4-780*0.333333^3+590*0.333333^2-200*0.333333+39
=20*0.001371733882051-164*0.333333^5+515*0.333333^4-780*0.333333^3+590*0.333333^2-200*0.333333+39
=20*0.001371733882051-164*0.004115205761358+515*0.333333^4-780*0.333333^3+590*0.333333^2-200*0.333333+39
=20*0.001371733882051-164*0.004115205761358+515*0.012345629629704-780*0.333333^3+590*0.333333^2-200*0.333333+39
=20*0.001371733882051-164*0.004115205761358+515*0.012345629629704-780*0.037036925926037+590*0.333333^2-200*0.333333+39
=20*0.001371733882051-164*0.004115205761358+515*0.012345629629704-780*0.037036925926037+590*0.111110888889-200*0.333333+39
=0.027435-164*0.004115205761358+515*0.012345629629704-780*0.037036925926037+590*0.111110888889-200*0.333333+39
=0.027435-0.674894+515*0.012345629629704-780*0.037036925926037+590*0.111110888889-200*0.333333+39
=0.027435-0.674894+6.357999-780*0.037036925926037+590*0.111110888889-200*0.333333+39
=0.027435-0.674894+6.357999-28.888802+590*0.111110888889-200*0.333333+39
=0.027435-0.674894+6.357999-28.888802+65.555424-200*0.333333+39
=0.027435-0.674894+6.357999-28.888802+65.555424-66.6666+39
=-0.647459+6.357999-28.888802+65.555424-66.6666+39
=5.71054-28.888802+65.555424-66.6666+39
=-23.178262+65.555424-66.6666+39
=42.377162-66.6666+39
=-24.289438+39
=14.710562 答案:20*(1/3)^6-164*(1/3)^5+515*(1/3)^4-780*(1/3)^3+590*(1/3)^2-200*(1/3)+39=14.710562你的问题在这里没有得到解决?请到 热门难题 里面看看吧!