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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(12.6)-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10) 的值.
题型:数学计算
解:
90+arctan(12.6)-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10)
=90+arctan12.6-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10)
=90+arctan12.6-arctan6.3-arctan(12.6/5)-arctan(12.6/10)
=90+arctan12.6-arctan6.3-arctan2.52-arctan(12.6/10)
=90+arctan12.6-arctan6.3-arctan2.52-arctan1.26
=90+1.491597-arctan6.3-arctan2.52-arctan1.26
=90+1.491597-1.413379-arctan2.52-arctan1.26
=90+1.491597-1.413379-1.19303-arctan1.26
=90+1.491597-1.413379-1.19303-0.899939
=91.491597-1.413379-1.19303-0.899939
=90.078218-1.19303-0.899939
=88.885188-0.899939
=87.985249 答案:90+arctan(12.6)-arctan(12.6/2)-arctan(12.6/5)-arctan(12.6/10)=87.985249 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!