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(2*5)-arctan(0.1*5)-arctan(0.02*5)-arctan(0.01*5)-arctan(80*5) 的值.
题型:数学计算
解:
90+arctan(2*5)-arctan(0.1*5)-arctan(0.02*5)-arctan(0.01*5)-arctan(80*5)
=90+arctan10-arctan(0.1*5)-arctan(0.02*5)-arctan(0.01*5)-arctan(80*5)
=90+arctan10-arctan0.5-arctan(0.02*5)-arctan(0.01*5)-arctan(80*5)
=90+arctan10-arctan0.5-arctan0.1-arctan(0.01*5)-arctan(80*5)
=90+arctan10-arctan0.5-arctan0.1-arctan0.05-arctan(80*5)
=90+arctan10-arctan0.5-arctan0.1-arctan0.05-arctan400
=90+1.471128-arctan0.5-arctan0.1-arctan0.05-arctan400
=90+1.471128-0.463648-arctan0.1-arctan0.05-arctan400
=90+1.471128-0.463648-0.099669-arctan0.05-arctan400
=90+1.471128-0.463648-0.099669-0.049958-arctan400
=90+1.471128-0.463648-0.099669-0.049958-1.568296
=91.471128-0.463648-0.099669-0.049958-1.568296
=91.00748-0.099669-0.049958-1.568296
=90.907811-0.049958-1.568296
=90.857853-1.568296
=89.289557 答案:90+arctan(2*5)-arctan(0.1*5)-arctan(0.02*5)-arctan(0.01*5)-arctan(80*5)=89.289557 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!