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 1/2×3.299×((1.49×25)+(1.56×40)+(6.22×22)+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3)) 的值.
题型:数学计算
解:
1/2×3.299×((1.49×25)+(1.56×40)+(6.22×22)+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×(37.25+(1.56×40)+(6.22×22)+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×(37.25+62.4+(6.22×22)+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×(37.25+62.4+136.84+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×(37.25+62.4+136.84+343.8)+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×580.29+0.75×0.8×0.785×(220+1.5×8×(15-3))
=1/2×3.299×580.29+0.75×0.8×0.785×(220+1.5×8×12)
=1/2×3.299×580.29+0.75×0.8×0.785×364
=0.5×3.299×580.29+0.75×0.8×0.785×364
=1.6495×580.29+0.75×0.8×0.785×364
=957.188355+0.75×0.8×0.785×364
=957.188355+0.6×0.785×364
=957.188355+0.471×364
=957.188355+171.444
=1128.632355 答案:1/2×3.299×((1.49×25)+(1.56×40)+(6.22×22)+(5.73×60))+0.75×0.8×0.785×(220+1.5×8×(15-3))=1128.632355你的问题在这里没有得到解决?请到 热门难题 里面看看吧!