Question

2 sin 30 - cos 60 ×tg 225

Answer 1

$2Sin30-Cos60*tg225 = 2* frac{1}{2} - frac{ 1 }{2}*tg(180 + 45)=1 - frac{1}{2}*tg45 =$$1 - frac{1}{2}*1= 1 - frac{1}{2}=0,5$