Jawabanmu

2014-04-13T18:34:56+07:00
Tan 600 = tan(600-360)=tan 240 = akar 3 sin 900 = sin(900-720)= sin 180= 0 cos(-390)=cos 390=cos(360+30)=cos30=1/2 akar3 jadi tan 600 - sin 900+ cos(-390)= akar3+1/2 akar 3= (3/2) akar3
Tapi di pilihannya cumak ada -akar3, -1/2akar3, -1/3akar3, 1/2akar3, akar3