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 2×0.114×2.135×78.892+60*π/360*((0.850+0.23)^2-0.850^2)×54 的值.
题型:数学计算
解:
2×0.114×2.135×78.892+60*π/360*((0.850+0.23)^2-0.850^2)×54
=2×0.114×2.135×78.892+60*π/360*(1.08^2-0.850^2)×54
=2×0.114×2.135×78.892+60*π/360*0.4439×54
=0.228×2.135×78.892+60*π/360*0.4439×54
=0.48678×78.892+60*π/360*0.4439×54
=38.403048+60*π/360*0.4439×54
=38.403048+188.495559/360*0.4439×54
=38.403048+0.523599*0.4439×54
=38.403048+0.232426×54
=38.403048+12.551004
=50.954052 答案:2×0.114×2.135×78.892+60*π/360*((0.850+0.23)^2-0.850^2)×54=50.954052你的问题在这里没有得到解决?请到 热门难题 里面看看吧!