Respuesta :

The answer is -9
Hope it helped

Answer:

  • - 9

Step-by-step explanation:

  • 3 cos π - 12 sin (5π/6) =
  • 3(-1) - 12 sin (π - π/6) =
  • -3 - 12 sin π/6 =
  • -3 - 12(1/2) =
  • -3 - 6 =
  • -9