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 90+arctan((0.09*20.1)^2+1)-arctan((0.2*20.1)^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1) 的值.
题型:数学计算
解:
90+arctan((0.09*20.1)^2+1)-arctan((0.2*20.1)^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan(1.809^2+1)-arctan((0.2*20.1)^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan((0.2*20.1)^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan(4.02^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan17.1604-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan17.1604-arctan(0.28944^2+1)-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan17.1604-arctan1.083776-arctan((0.0625*20.1)^2+1)
=90+arctan4.272481-arctan17.1604-arctan1.083776-arctan(1.25625^2+1)
=90+arctan4.272481-arctan17.1604-arctan1.083776-arctan2.578164
=90+1.340879-arctan17.1604-arctan1.083776-arctan2.578164
=90+1.340879-1.512588-arctan1.083776-arctan2.578164
=90+1.340879-1.512588-0.82558-arctan2.578164
=90+1.340879-1.512588-0.82558-1.200788
=91.340879-1.512588-0.82558-1.200788
=89.828291-0.82558-1.200788
=89.002711-1.200788
=87.801923 答案:90+arctan((0.09*20.1)^2+1)-arctan((0.2*20.1)^2+1)-arctan((0.0144*20.1)^2+1)-arctan((0.0625*20.1)^2+1)=87.801923 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!