sin25/6pai+cos25/3pai+tan(-25/4pai)
问题描述:
sin25/6pai+cos25/3pai+tan(-25/4pai)
答
sin25/6pai+cos25/3pai+tan(-25/4pai)
=sin兀/6+cos兀/3-tan兀/4
=1/2+1/2-1
=0
希望能帮到您,我用的是手机,收不到追问,如果有疑问请发消息给我~