3cos п/3+2sin п/6-3ctg(-п/4)+ctg(-п/4)

Question

3cos п/3+2sin п/6-3ctg(-п/4)+ctg(-п/4)

Answer 1

3*cos60+2sin30-(-3tg45)+(-ctg45)= 3*1/2+2*√3/2+1-1=3/2+√3