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☆算术计算1题
〖1/1算式〗
作业:求算式 -arctan(13.1/(-5.7))-arctan(13.1/(5-5.7))-arctan(13.1/(20-5.7)) 的值.
题型:数学计算
解:
-arctan(13.1/(-5.7))-arctan(13.1/(5-5.7))-arctan(13.1/(20-5.7))
=-arctan(13.1/(-5.7))-arctan(13.1/(5-5.7))-arctan(13.1/(20-5.7))
=-arctan(-2.298246)-arctan(13.1/(5-5.7))-arctan(13.1/(20-5.7))
=-arctan-2.298246-arctan(13.1/(-0.7))-arctan(13.1/(20-5.7))
=-arctan-2.298246-arctan(-18.714286)-arctan(13.1/(20-5.7))
=-arctan-2.298246-arctan-18.714286-arctan(13.1/14.3)
=-arctan-2.298246-arctan-18.714286-arctan0.916084
=--1.16039-arctan-18.714286-arctan0.916084
=--1.16039--1.517412-arctan0.916084
=--1.16039--1.517412-0.741631
=1.517412-0.741631
=0.775781 答案:-arctan(13.1/(-5.7))-arctan(13.1/(5-5.7))-arctan(13.1/(20-5.7))=0.775781 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!