Jawabanmu

2014-03-16T19:11:17+07:00
Sin 2x (sin 2x + cos 2x)  + cos 3x (cos 3x) + sin x

sin 4x x 1 +cos 9x + sin x
sin 4x + cos9x = ?
sin tetha + cos tetha = 1
sin 4x + cos9x = 1
cosec tetha = 12