sin20o56,45"怎么换算成数学又是怎么算的呢?
问题描述：
sin20o56,45"怎么换算成数学又是怎么算的呢?
答
sin20°56'45"
=sin(20+56/60+45/60^2)°
=sin(20+0.9333+0.0125)
=sin20.9458°
答
45"=45/60=0.75'
56.75'=56.75/60=0.95
sin20°56'45"=20.95°
答
秒换分*1/60,分换度 *1/60 ,