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☆算术计算1题
〖1/1算式〗
作业:求算式 arctan(28.6)-arctan(1.43)-arctan(0.143)-arctan(572)+90 的值.
题型:数学计算
解:
arctan(28.6)-arctan(1.43)-arctan(0.143)-arctan(572)+90
=arctan28.6-arctan(1.43)-arctan(0.143)-arctan(572)+90
=arctan28.6-arctan1.43-arctan(0.143)-arctan(572)+90
=arctan28.6-arctan1.43-arctan0.143-arctan(572)+90
=arctan28.6-arctan1.43-arctan0.143-arctan572+90
=1.535846-arctan1.43-arctan0.143-arctan572+90
=1.535846-0.96054-arctan0.143-arctan572+90
=1.535846-0.96054-0.142037-arctan572+90
=1.535846-0.96054-0.142037-1.569048+90
=0.575306-0.142037-1.569048+90
=0.433269-1.569048+90
=-1.135779+90
=88.864221 答案:arctan(28.6)-arctan(1.43)-arctan(0.143)-arctan(572)+90=88.864221 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!