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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(4.1*2.45)-arctan(0.25*2.45)-arctan(0.0625*2.45)-arctan(7.07*2.45) 的值.
题型:数学计算
解:
90+arctan(4.1*2.45)-arctan(0.25*2.45)-arctan(0.0625*2.45)-arctan(7.07*2.45)
=90+arctan10.045-arctan(0.25*2.45)-arctan(0.0625*2.45)-arctan(7.07*2.45)
=90+arctan10.045-arctan0.6125-arctan(0.0625*2.45)-arctan(7.07*2.45)
=90+arctan10.045-arctan0.6125-arctan0.153125-arctan(7.07*2.45)
=90+arctan10.045-arctan0.6125-arctan0.153125-arctan17.3215
=90+1.471571-arctan0.6125-arctan0.153125-arctan17.3215
=90+1.471571-0.54956-arctan0.153125-arctan17.3215
=90+1.471571-0.54956-0.151945-arctan17.3215
=90+1.471571-0.54956-0.151945-1.513129
=91.471571-0.54956-0.151945-1.513129
=90.922011-0.151945-1.513129
=90.770066-1.513129
=89.256937 答案:90+arctan(4.1*2.45)-arctan(0.25*2.45)-arctan(0.0625*2.45)-arctan(7.07*2.45)=89.256937 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!