Jawabanmu

2014-03-10T16:28:15+07:00
A) sec30 + sin 60 - sin45 = 2/3akar 3 + akar3/2 - akar 2/2 = 4akar3 + 3akar3 - 3akar2 = 7akar3-3akar2/6
2 2 2
2014-03-10T16:35:05+07:00
A. 1/2+1/2√3-1/2√2
c. √2-√3
   1/3√3+2