Question

If 0 lies in the quadrant IV. What can be the value of cos 0?​

Answer 1

Answer:

If 0 lies in the quadrant IV. What can be the value of cos 0 ? The angle 0 does not lie in any of the four quadrants, it lands directly in between quadrants I and IV. The value of cos 0 is always 1.

Answer 2

Answer:

The answer is D.

Step-by-step explanation:

On Quadrant IV, cosine will be positive. So in the options above, only D satisfy the Cosine Rule.