Jawabanmu

Jawaban paling cerdas!
2014-01-24T15:30:54+07:00
Sin 3p + sin p
= 2 sin 1/2 (3p+p) cos 1/2 (3p-p)
= 2 sin 1/2 4p cos 1/2 2p
= 2 sin 2p cos p
= 2. 2. sin p cos p cos p
= 4 sin p cos^2 p (A)
1 5 1