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☆算术计算1题
〖1/1算式〗
作业:求算式 90+arctan(4.2*2.5)-arctan(0.1*2.5)-arctan(0.2*2.5)-arctan(41*2.5) 的值.
题型:数学计算
解:
90+arctan(4.2*2.5)-arctan(0.1*2.5)-arctan(0.2*2.5)-arctan(41*2.5)
=90+arctan10.5-arctan(0.1*2.5)-arctan(0.2*2.5)-arctan(41*2.5)
=90+arctan10.5-arctan0.25-arctan(0.2*2.5)-arctan(41*2.5)
=90+arctan10.5-arctan0.25-arctan0.5-arctan(41*2.5)
=90+arctan10.5-arctan0.25-arctan0.5-arctan102.5
=90+1.475845-arctan0.25-arctan0.5-arctan102.5
=90+1.475845-0.244979-arctan0.5-arctan102.5
=90+1.475845-0.244979-0.463648-arctan102.5
=90+1.475845-0.244979-0.463648-1.561041
=91.475845-0.244979-0.463648-1.561041
=91.230866-0.463648-1.561041
=90.767218-1.561041
=89.206177 答案:90+arctan(4.2*2.5)-arctan(0.1*2.5)-arctan(0.2*2.5)-arctan(41*2.5)=89.206177 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!