cos inverse multiply cos 680
Answers
Answered by
1
Cos ⁻¹ { Cos 680°) }
Cos ⁻¹ {Cos (4π - 40°) }
4π = 360 × 2 = 720
720 - 40 = 680°
Cos ⁻¹ {Cos (4π - 40)}
= Cos ⁻¹ (Cos 40) = 40
= 40°.
follow me please...
Mark as brainliest please...
Answered by
1
Answer:
40° .
Step-by-step explanation:
i think u r satisfied plz mark me as brainliest .
plz dear
Similar questions