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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(0.2*20.1)-arctan(0.2*20.1)-arctan(0.01*20.1)-arctan(0.0625*20.1) 的值.
题型:数学计算
解:
90+arctan(0.2*20.1)-arctan(0.2*20.1)-arctan(0.01*20.1)-arctan(0.0625*20.1)
=90+arctan4.02-arctan(0.2*20.1)-arctan(0.01*20.1)-arctan(0.0625*20.1)
=90+arctan4.02-arctan4.02-arctan(0.01*20.1)-arctan(0.0625*20.1)
=90+arctan4.02-arctan4.02-arctan0.201-arctan(0.0625*20.1)
=90+arctan4.02-arctan4.02-arctan0.201-arctan1.25625
=90+1.326989-arctan4.02-arctan0.201-arctan1.25625
=90+1.326989-1.326989-arctan0.201-arctan1.25625
=90+1.326989-1.326989-0.198357-arctan1.25625
=90+1.326989-1.326989-0.198357-0.898487
=91.326989-1.326989-0.198357-0.898487
=90-0.198357-0.898487
=89.801643-0.898487
=88.903156 答案:90+arctan(0.2*20.1)-arctan(0.2*20.1)-arctan(0.01*20.1)-arctan(0.0625*20.1)=88.903156 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!