Jawabanmu

  • DB45
  • BrainlyDoctor
2016-11-21T22:45:27+07:00
Sin(-270)+ sin 180 + tan 720 =
= - sin 270 + sin 180 + tan 720
= - { sin(180+90)} + sin(180+0) + tan {2(360) + 0)
= - sin 90 + sin 0 + tan 0
= -1 + 0 + 0
= -1