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☆算术计算1题
〖1/1算式〗
作业:求算式 395.195×(tan(45-14.85/2)*tan(45-14.85/2))-2×14.12×tan(45-14.85/2) 的值.
题型:数学计算
解:
395.195×(tan(45-14.85/2)*tan(45-14.85/2))-2×14.12×tan(45-14.85/2)
=395.195×(tan37.575*tan(45-14.85/2))-2×14.12×tan(45-14.85/2)
=395.195×(tan37.575*tan37.575)-2×14.12×tan(45-14.85/2)
=395.195×0.015563-2×14.12×tan(45-14.85/2)
=395.195×0.015563-2×14.12×tan37.575
=395.195×0.015563-2×14.12×-0.124753
=6.15042-2×14.12×(-0.124753)
=6.15042-28.24×(-0.124753)
=6.15042-(-3.523025)
=9.673445 答案:395.195×(tan(45-14.85/2)*tan(45-14.85/2))-2×14.12×tan(45-14.85/2)=9.673445 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!