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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(0.09*20.1)-arctan(0.2*20.1)-arctan(0.0144*20.1)-arctan(0.0625*20.1) 的值.
题型:数学计算
解:
90+arctan(0.09*20.1)-arctan(0.2*20.1)-arctan(0.0144*20.1)-arctan(0.0625*20.1)
=90+arctan1.809-arctan(0.2*20.1)-arctan(0.0144*20.1)-arctan(0.0625*20.1)
=90+arctan1.809-arctan4.02-arctan(0.0144*20.1)-arctan(0.0625*20.1)
=90+arctan1.809-arctan4.02-arctan0.28944-arctan(0.0625*20.1)
=90+arctan1.809-arctan4.02-arctan0.28944-arctan1.25625
=90+1.065812-arctan4.02-arctan0.28944-arctan1.25625
=90+1.065812-1.326989-arctan0.28944-arctan1.25625
=90+1.065812-1.326989-0.281741-arctan1.25625
=90+1.065812-1.326989-0.281741-0.898487
=91.065812-1.326989-0.281741-0.898487
=89.738823-0.281741-0.898487
=89.457082-0.898487
=88.558595 答案:90+arctan(0.09*20.1)-arctan(0.2*20.1)-arctan(0.0144*20.1)-arctan(0.0625*20.1)=88.558595 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!