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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(15.16*0.65)-arctan(2*0.65)-arctan(57*0.65) 的值.
题型:数学计算
解:
90+arctan(15.16*0.65)-arctan(2*0.65)-arctan(57*0.65)
=90+arctan9.854-arctan(2*0.65)-arctan(57*0.65)
=90+arctan9.854-arctan1.3-arctan(57*0.65)
=90+arctan9.854-arctan1.3-arctan37.05
=90+1.469661-arctan1.3-arctan37.05
=90+1.469661-0.915101-arctan37.05
=90+1.469661-0.915101-1.543812
=91.469661-0.915101-1.543812
=90.55456-1.543812
=89.010748 答案:90+arctan(15.16*0.65)-arctan(2*0.65)-arctan(57*0.65)=89.010748 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!