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 2010.94*0.39-1005.47*sin(360*0.39)+(3*0.39-1.25)*360*8.6 的值.
题型:数学计算
解:
2010.94*0.39-1005.47*sin(360*0.39)+(3*0.39-1.25)*360*8.6
=2010.94*0.39-1005.47*sin140.4+(3*0.39-1.25)*360*8.6
=2010.94*0.39-1005.47*sin140.4+(-0.08)*360*8.6
=2010.94*0.39-1005.47*0.825828+-0.08*360*8.6
=784.2666-1005.47*0.825828+(-0.08)*360*8.6
=784.2666-830.345279+(-0.08)*360*8.6
=784.2666-830.345279+(-28.8)*8.6
=784.2666-830.345279+(-247.68)
=-46.078679+(-247.68)
=-293.758679 答案:2010.94*0.39-1005.47*sin(360*0.39)+(3*0.39-1.25)*360*8.6=-293.758679 注:弧度制你的问题在这里没有得到解决?请到 热门难题 里面看看吧!