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 180+arctan(3/(-3))+arctan(3/(1-3))+arctan(3/(10-3)) 的值.
题型:数学计算
解:
180+arctan(3/(-3))+arctan(3/(1-3))+arctan(3/(10-3))
=180+arctan(3/(-3))+arctan(3/(1-3))+arctan(3/(10-3))
=180+arctan(-1)+arctan(3/(1-3))+arctan(3/(10-3))
=180+arctan-1+arctan(3/(-2))+arctan(3/(10-3))
=180+arctan-1+arctan(-1.5)+arctan(3/(10-3))
=180+arctan-1+arctan-1.5+arctan(3/7)
=180+arctan-1+arctan-1.5+arctan0.428571
=180+-0.785398+arctan-1.5+arctan0.428571
=180+-0.785398+-0.982794+arctan0.428571
=180+-0.785398+-0.982794+0.404891
=179.214602+(-0.982794)+0.404891
=178.231808+0.404891
=178.636699 答案:180+arctan(3/(-3))+arctan(3/(1-3))+arctan(3/(10-3))=178.636699 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!