sin6分之17派等于多少
问题描述:
sin6分之17派等于多少
答
sin(17π/6)=sin(5π/6)=sin(π-π/6)=sin(π/6)=1/2
答
sin17π/6=sin(3π-1/6π)=sin(π-1/6π)
=sinπ/6=1/2