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(10/3)+arctan(30/20)-arctan(10)-arctan(5)-arctan(2/3) 的值.
题型:数学计算
解:
90+arctan(10/3)+arctan(30/20)-arctan(10)-arctan(5)-arctan(2/3)
=90+arctan3.333333+arctan(30/20)-arctan(10)-arctan(5)-arctan(2/3)
=90+arctan3.333333+arctan1.5-arctan(10)-arctan(5)-arctan(2/3)
=90+arctan3.333333+arctan1.5-arctan10-arctan(5)-arctan(2/3)
=90+arctan3.333333+arctan1.5-arctan10-arctan5-arctan(2/3)
=90+arctan3.333333+arctan1.5-arctan10-arctan5-arctan0.666667
=90+1.27934+arctan1.5-arctan10-arctan5-arctan0.666667
=90+1.27934+0.982794-arctan10-arctan5-arctan0.666667
=90+1.27934+0.982794-1.471128-arctan5-arctan0.666667
=90+1.27934+0.982794-1.471128-1.373401-arctan0.666667
=90+1.27934+0.982794-1.471128-1.373401-0.588003
=91.27934+0.982794-1.471128-1.373401-0.588003
=92.262134-1.471128-1.373401-0.588003
=90.791006-1.373401-0.588003
=89.417605-0.588003
=88.829602 答案:90+arctan(10/3)+arctan(30/20)-arctan(10)-arctan(5)-arctan(2/3)=88.829602 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!