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☆算术计算1题
〖1/1算式〗
作业:求算式 90-arctan(0.2*8)-arctan(0.5*8)+arctan(0.64*8)-arctan(0.025*8) 的值.
题型:数学计算
解:
90-arctan(0.2*8)-arctan(0.5*8)+arctan(0.64*8)-arctan(0.025*8)
=90-arctan1.6-arctan(0.5*8)+arctan(0.64*8)-arctan(0.025*8)
=90-arctan1.6-arctan4+arctan(0.64*8)-arctan(0.025*8)
=90-arctan1.6-arctan4+arctan5.12-arctan(0.025*8)
=90-arctan1.6-arctan4+arctan5.12-arctan0.2
=90-1.012197-arctan4+arctan5.12-arctan0.2
=90-1.012197-1.325818+arctan5.12-arctan0.2
=90-1.012197-1.325818+1.377912-arctan0.2
=90-1.012197-1.325818+1.377912-0.197396
=88.987803-1.325818+1.377912-0.197396
=87.661985+1.377912-0.197396
=89.039897-0.197396
=88.842501 答案:90-arctan(0.2*8)-arctan(0.5*8)+arctan(0.64*8)-arctan(0.025*8)=88.842501 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!