Question

Скільки буде?
sin 300° · cos 120° · tg 150° = ??

Answer 1

$sin(360-60)*cos(180-60)*tg(180-30)=sin60*cos60*tg30=$$frac{sqrt{3}}{2} * frac{1}{2} * frac{ sqrt{3} }{3} = frac{3}{12}= frac{1}{4} =0,25$