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)+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3)) 的值.
题型:数学计算
解:
1/2×3.299×((1.49×25)+(1.56×40)+(6.22×22)+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×(37.25+(1.56×40)+(6.22×22)+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×(37.25+62.4+(6.22×22)+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×(37.25+62.4+136.84+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×(37.25+62.4+136.84+643.8)+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×880.29+0.75×0.8×0.785×(220+1.5×8×(20-3))
=1/2×3.299×880.29+0.75×0.8×0.785×(220+1.5×8×17)
=1/2×3.299×880.29+0.75×0.8×0.785×424
=0.5×3.299×880.29+0.75×0.8×0.785×424
=1.6495×880.29+0.75×0.8×0.785×424
=1452.038355+0.75×0.8×0.785×424
=1452.038355+0.6×0.785×424
=1452.038355+0.471×424
=1452.038355+199.704
=1651.742355 答案:1/2×3.299×((1.49×25)+(1.56×40)+(6.22×22)+(10.73×60))+0.75×0.8×0.785×(220+1.5×8×(20-3))=1651.742355你的问题在这里没有得到解决?请到 热门难题 里面看看吧!