Jawabanmu

2014-06-03T20:40:48+07:00
sec (-300)= -sec(360-60)= -sec 60= - 1/cos60= -1/1/2= -2 =>2( kuadrat empat )
cosec(-330)=-cosec(360-30)= -cosec30= -1/sin30=-1/1/2=-2+>-2( kuadran empat )