tan(a) = b; 等价于 arctan(b) = 计算一个角度,已知tan60=根号3,求60度,用arctan还是tan-1?
问题描述:
tan(a) = b; 等价于 arctan(b) =
计算一个角度,已知tan60=根号3,求60度,用arctan还是tan-1?
答
tan(a) = b; 等价于 arctan(b) =
计算一个角度,已知tan60=根号3,求60度,用arctan还是tan-1?