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(80/2)+arctan(80/6)-arctan(80/12)-arctan(80/60)-arctan(80/80) 的值.
题型:数学计算
解:
arctan(80/2)+arctan(80/6)-arctan(80/12)-arctan(80/60)-arctan(80/80)
=arctan40+arctan(80/6)-arctan(80/12)-arctan(80/60)-arctan(80/80)
=arctan40+arctan13.333333-arctan(80/12)-arctan(80/60)-arctan(80/80)
=arctan40+arctan13.333333-arctan6.666667-arctan(80/60)-arctan(80/80)
=arctan40+arctan13.333333-arctan6.666667-arctan1.333333-arctan(80/80)
=arctan40+arctan13.333333-arctan6.666667-arctan1.333333-arctan1
=1.545802+arctan13.333333-arctan6.666667-arctan1.333333-arctan1
=1.545802+1.495936-arctan6.666667-arctan1.333333-arctan1
=1.545802+1.495936-1.421906-arctan1.333333-arctan1
=1.545802+1.495936-1.421906-0.927295-arctan1
=1.545802+1.495936-1.421906-0.927295-0.785398
=3.041738-1.421906-0.927295-0.785398
=1.619832-0.927295-0.785398
=0.692537-0.785398
=-0.092861 答案:arctan(80/2)+arctan(80/6)-arctan(80/12)-arctan(80/60)-arctan(80/80)=-0.092861 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!