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☆算术计算1题
〖1/1算式〗
作业:求算式 -90+arctan(0.028/0.1875)-arctan(0.028/0.028)-2*arctan(0.028/12) 的值.
题型:数学计算
解:
-90+arctan(0.028/0.1875)-arctan(0.028/0.028)-2*arctan(0.028/12)
=-90+arctan0.149333-arctan(0.028/0.028)-2*arctan(0.028/12)
=-90+arctan0.149333-arctan1-2*arctan(0.028/12)
=-90+arctan0.149333-arctan1-2*arctan0.002333
=-90+0.148238-arctan1-2*arctan0.002333
=-90+0.148238-0.785398-2*arctan0.002333
=-90+0.148238-0.785398-2*0.002333
=-90+0.148238-0.785398-0.004666
=-89.851762-0.785398-0.004666
=-90.63716-0.004666
=-90.641826 答案:-90+arctan(0.028/0.1875)-arctan(0.028/0.028)-2*arctan(0.028/12)=-90.641826 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!