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☆算术计算1题
〖1/1算式〗
作业:求算式 180+arctan(0.47*7.5)-90-arctan(7.5)-arctan(0.034*7.5) 的值.
题型:数学计算
解:
180+arctan(0.47*7.5)-90-arctan(7.5)-arctan(0.034*7.5)
=180+arctan3.525-90-arctan(7.5)-arctan(0.034*7.5)
=180+arctan3.525-90-arctan7.5-arctan(0.034*7.5)
=180+arctan3.525-90-arctan7.5-arctan0.255
=180+1.294371-90-arctan7.5-arctan0.255
=180+1.294371-90-1.438245-arctan0.255
=180+1.294371-90-1.438245-0.249679
=181.294371-90-1.438245-0.249679
=91.294371-1.438245-0.249679
=89.856126-0.249679
=89.606447 答案:180+arctan(0.47*7.5)-90-arctan(7.5)-arctan(0.034*7.5)=89.606447 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!