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☆算术计算1题
〖1/1算式〗
作业:求算式 90-arctan(0.1*3)-arctan(0.2*3)-arctan(41*3)+arctan(4.2+3) 的值.
题型:数学计算
解:
90-arctan(0.1*3)-arctan(0.2*3)-arctan(41*3)+arctan(4.2+3)
=90-arctan0.3-arctan(0.2*3)-arctan(41*3)+arctan(4.2+3)
=90-arctan0.3-arctan0.6-arctan(41*3)+arctan(4.2+3)
=90-arctan0.3-arctan0.6-arctan123+arctan(4.2+3)
=90-arctan0.3-arctan0.6-arctan123+arctan7.2
=90-0.291457-arctan0.6-arctan123+arctan7.2
=90-0.291457-0.54042-arctan123+arctan7.2
=90-0.291457-0.54042-1.562666+arctan7.2
=90-0.291457-0.54042-1.562666+1.43279
=89.708543-0.54042-1.562666+1.43279
=89.168123-1.562666+1.43279
=87.605457+1.43279
=89.038247 答案:90-arctan(0.1*3)-arctan(0.2*3)-arctan(41*3)+arctan(4.2+3)=89.038247 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!