Jawabanmu

2014-03-09T10:08:37+07:00
2014-03-09T11:00:37+07:00
1) sin (45 + 30 ) = sin 75 = 0,97

2) sin ( 45 + 30 ) = sin 45 + sin 30 = 0.7 + 0.2 = 0,9