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☆算术计算1题
〖1/1算式〗
作业:求算式 1/12*144*11^3+144*11*(39.3-11/2)^2+1/12*18*130^3+18*130*(130/2-39.3)^2 的值.
题型:数学计算
解:
1/12*144*11^3+144*11*(39.3-11/2)^2+1/12*18*130^3+18*130*(130/2-39.3)^2
=1/12*144*11^3+144*11*33.8^2+1/12*18*130^3+18*130*(130/2-39.3)^2
=1/12*144*11^3+144*11*33.8^2+1/12*18*130^3+18*130*25.7^2
=1/12*144*1331+144*11*33.8^2+1/12*18*130^3+18*130*25.7^2
=1/12*144*1331+144*11*1142.439999999999827+1/12*18*130^3+18*130*25.7^2
=1/12*144*1331+144*11*1142.439999999999827+1/12*18*2197000+18*130*25.7^2
=1/12*144*1331+144*11*1142.439999999999827+1/12*18*2197000+18*130*660.490000000000009
=0.083333*144*1331+144*11*1142.439999999999827+1/12*18*2197000+18*130*660.490000000000009
=11.999952*1331+144*11*1142.439999999999827+1/12*18*2197000+18*130*660.490000000000009
=15971.936112+144*11*1142.439999999999827+1/12*18*2197000+18*130*660.490000000000009
=15971.936112+1584*1142.439999999999827+1/12*18*2197000+18*130*660.490000000000009
=15971.936112+1809624.96+1/12*18*2197000+18*130*660.490000000000009
=15971.936112+1809624.96+0.083333*18*2197000+18*130*660.490000000000009
=15971.936112+1809624.96+1.499994*2197000+18*130*660.490000000000009
=15971.936112+1809624.96+3295486.818+18*130*660.490000000000009
=15971.936112+1809624.96+3295486.818+2340*660.490000000000009
=15971.936112+1809624.96+3295486.818+1545546.6
=1825596.896112+3295486.818+1545546.6
=5121083.714112+1545546.6
=6666630.314112 答案:1/12*144*11^3+144*11*(39.3-11/2)^2+1/12*18*130^3+18*130*(130/2-39.3)^2=6666630.314112你的问题在这里没有得到解决?请到 热门难题 里面看看吧!