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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(66.6*1.2)-arctan(888*1.2)-arctan(0.5*1.2) 的值.
题型:数学计算
解:
90+arctan(66.6*1.2)-arctan(888*1.2)-arctan(0.5*1.2)
=90+arctan79.92-arctan(888*1.2)-arctan(0.5*1.2)
=90+arctan79.92-arctan1065.6-arctan(0.5*1.2)
=90+arctan79.92-arctan1065.6-arctan0.6
=90+1.558284-arctan1065.6-arctan0.6
=90+1.558284-1.569858-arctan0.6
=90+1.558284-1.569858-0.54042
=91.558284-1.569858-0.54042
=89.988426-0.54042
=89.448006 答案:90+arctan(66.6*1.2)-arctan(888*1.2)-arctan(0.5*1.2)=89.448006 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!