An angle in standard position measures radians, and P (0, 1) is on the terminal side of the angle. What is the value of the cosine of this angle?

-1

0

1

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Answer: 0

Explanation:

1) Cosine trigonometric ratio definition:

cos (α) = adjacent-leg / hypotenuse

2) P (0,1) ⇒

- adyacent-leg = x-coordinate = 0

- opposite-leg = y-coordinate = 1

- hypotenuse = √[x² + y² ] = 1

3) Therefore, cos (α) = 0 / 1 = 0