General Certificate of Secondary Education (GCSE) Maths Practice Exam

Question: 1 / 400

What is the value of cos 0°?

1

The value of cos 0° is 1 because, in the context of a unit circle, the cosine of an angle corresponds to the x-coordinate of the point where the angle intersects the circle. At 0°, the point on the unit circle is at (1, 0), where the x-coordinate (cosine value) is exactly 1.

This relationship also fits within the broader context of trigonometric functions: cosine measures the ratio of the adjacent side to the hypotenuse in a right triangle, and at 0°, the adjacent side is equal to the hypotenuse, affirming that cos 0° equals 1.

This value is fundamental in trigonometry, serving as a key reference point for understanding the properties and behaviors of the cosine function across different angles.

Get further explanation with Examzify DeepDiveBeta

0

0.5

-1

Next Question

Report this question

Download General Certificate of Secondary Education (GCSE) Maths Practice Exam PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy