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 90+arctan(0.5*12)-arctan(10*12)-arctan(0.047*12)-arctan(0.03*12) 的值.
题型:数学计算
解:
90+arctan(0.5*12)-arctan(10*12)-arctan(0.047*12)-arctan(0.03*12)
=90+arctan6-arctan(10*12)-arctan(0.047*12)-arctan(0.03*12)
=90+arctan6-arctan120-arctan(0.047*12)-arctan(0.03*12)
=90+arctan6-arctan120-arctan0.564-arctan(0.03*12)
=90+arctan6-arctan120-arctan0.564-arctan0.36
=90+1.405648-arctan120-arctan0.564-arctan0.36
=90+1.405648-1.562463-arctan0.564-arctan0.36
=90+1.405648-1.562463-0.513528-arctan0.36
=90+1.405648-1.562463-0.513528-0.345556
=91.405648-1.562463-0.513528-0.345556
=89.843185-0.513528-0.345556
=89.329657-0.345556
=88.984101 答案:90+arctan(0.5*12)-arctan(10*12)-arctan(0.047*12)-arctan(0.03*12)=88.984101 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!