Respuesta :
Answer:
- cos 35°
Step-by-step explanation:
215° is in the third quadrant where cos is negative
cos 215° = - cos( 215 - 180)° = - cos 35°
Answer:
- cos 35°
Step-by-step explanation:
215° is in the third quadrant in which cos is negative
cos 215°
cos(α - 180°) = - cos theta
-cos( 215 - 180)°
- cos 35°
hope it helps:)
mark brainliest!
