Question

2 примера по алгебре.

Answer 1

1) $-log_{3}3^{3}* frac{1}{2} =- frac{3}{2} =-1,5$
2) Sin(240°)=Sin(180°+60°)=Sin180°*Cos60°+Cos180°*Sin60°=0*0,5+(-1)*√3/2=$- frac{ sqrt{3} }{2}$