总述:本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业:求算式 arctan(0.15*18.72)+90-arctan(0.2*18.72)-arctan(0.02*18.72)-arctan(0.0625*18.72) 的值.
题型:数学计算
解:
arctan(0.15*18.72)+90-arctan(0.2*18.72)-arctan(0.02*18.72)-arctan(0.0625*18.72)
=arctan2.808+90-arctan(0.2*18.72)-arctan(0.02*18.72)-arctan(0.0625*18.72)
=arctan2.808+90-arctan3.744-arctan(0.02*18.72)-arctan(0.0625*18.72)
=arctan2.808+90-arctan3.744-arctan0.3744-arctan(0.0625*18.72)
=arctan2.808+90-arctan3.744-arctan0.3744-arctan1.17
=1.228675+90-arctan3.744-arctan0.3744-arctan1.17
=1.228675+90-1.309795-arctan0.3744-arctan1.17
=1.228675+90-1.309795-0.358245-arctan1.17
=1.228675+90-1.309795-0.358245-0.863579
=91.228675-1.309795-0.358245-0.863579
=89.91888-0.358245-0.863579
=89.560635-0.863579
=88.697056 答案:arctan(0.15*18.72)+90-arctan(0.2*18.72)-arctan(0.02*18.72)-arctan(0.0625*18.72)=88.697056 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!