计算sin10π-√2cos(-19π/4)-tan(-13π/3)=?
问题描述:
计算sin10π-√2cos(-19π/4)-tan(-13π/3)=?
答
=0-根2*cos(5pi/4)+tan(13pi/3)
=-根2*(-根2/2)+tan(pi/2)
=1+根3