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☆算术计算1题
〖1/1算式〗
作业:求算式 90-arctan(1.44/2)-arctan(1.44/10)-arctan(239.46*1.44)+arctan(6.94*1.44) 的值.
题型:数学计算
解:
90-arctan(1.44/2)-arctan(1.44/10)-arctan(239.46*1.44)+arctan(6.94*1.44)
=90-arctan0.72-arctan(1.44/10)-arctan(239.46*1.44)+arctan(6.94*1.44)
=90-arctan0.72-arctan0.144-arctan(239.46*1.44)+arctan(6.94*1.44)
=90-arctan0.72-arctan0.144-arctan344.8224+arctan(6.94*1.44)
=90-arctan0.72-arctan0.144-arctan344.8224+arctan9.9936
=90-0.624023-arctan0.144-arctan344.8224+arctan9.9936
=90-0.624023-0.143017-arctan344.8224+arctan9.9936
=90-0.624023-0.143017-1.567896+arctan9.9936
=90-0.624023-0.143017-1.567896+1.471064
=89.375977-0.143017-1.567896+1.471064
=89.23296-1.567896+1.471064
=87.665064+1.471064
=89.136128 答案:90-arctan(1.44/2)-arctan(1.44/10)-arctan(239.46*1.44)+arctan(6.94*1.44)=89.136128 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!