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=$- \frac{ \sqrt{3} }{2}$

Answer 2

1)=-3*1/2=-1,5
2) sin(240)=sin(180+60)=-sin 60 =-√3/2