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〖1/1算式〗
作业:求算式 1/12*144*113+144*11*(39.3-11/2)^2+1/12*18*1303+18*130*(130/2-39.3)^2 的值.
题型:数学计算
解:
1/12*144*113+144*11*(39.3-11/2)^2+1/12*18*1303+18*130*(130/2-39.3)^2
=1/12*144*113+144*11*33.8^2+1/12*18*1303+18*130*(130/2-39.3)^2
=1/12*144*113+144*11*33.8^2+1/12*18*1303+18*130*25.7^2
=1/12*144*113+144*11*1142.439999999999827+1/12*18*1303+18*130*25.7^2
=1/12*144*113+144*11*1142.439999999999827+1/12*18*1303+18*130*660.490000000000009
=0.083333*144*113+144*11*1142.439999999999827+1/12*18*1303+18*130*660.490000000000009
=11.999952*113+144*11*1142.439999999999827+1/12*18*1303+18*130*660.490000000000009
=1355.994576+144*11*1142.439999999999827+1/12*18*1303+18*130*660.490000000000009
=1355.994576+1584*1142.439999999999827+1/12*18*1303+18*130*660.490000000000009
=1355.994576+1809624.96+1/12*18*1303+18*130*660.490000000000009
=1355.994576+1809624.96+0.083333*18*1303+18*130*660.490000000000009
=1355.994576+1809624.96+1.499994*1303+18*130*660.490000000000009
=1355.994576+1809624.96+1954.492182+18*130*660.490000000000009
=1355.994576+1809624.96+1954.492182+2340*660.490000000000009
=1355.994576+1809624.96+1954.492182+1545546.6
=1810980.954576+1954.492182+1545546.6
=1812935.446758+1545546.6
=3358482.046758 答案:1/12*144*113+144*11*(39.3-11/2)^2+1/12*18*1303+18*130*(130/2-39.3)^2=3358482.046758你的问题在这里没有得到解决?请到 热门难题 里面看看吧!