计算:cox(π/3)-tan(π/4)+(3/4)tan(π/6)-sin(π/6)+cos(π/6)...
问题描述:
计算:cox(π/3)-tan(π/4)+(3/4)tan(π/6)-sin(π/6)+cos(π/6)...
计算:cox(π/3)-tan(π/4)+(3/4)tan(π/6)-sin(π/6)+cos(π/6)-sin(3π/2)+cosπ
答
cos(π/3)-tan(π/4)+(3/4)tan(π/6)-sin(π/6)+cos(π/6)-sin(3π/2)+cosπ
=1/2-1+(√3/4)-1/2+(√3/2)+1-1
=-1+(3√3/4)