sin(-33π/4）+cos5π-tan10π/3=?
问题描述：
sin(-33π/4）+cos5π-tan10π/3=?
答
sin(-33π/4）+cos5π-tan10π/3
= sin(-π/4)+cosπ-tan π4/3
= -√2/2-1-√3
答对了可是要给奖励的哦~~~
答
-0.61979252862398604791270310066832，计算器算的
答
sin(-33π/4）+cos5π-tan10π/3
=-sin(8π+π/4)+cos(4π+π)-tan(3π+π/3)
=-(√2/2)+(-1)-√3
=(-2-√2-2√3)/2