3 years ago

Why does cos(90°) = 0?

Mathematics

1 answer:

Anestetic [448]3 years ago

4 0

Answer:

Step-by-step explanation:

The horizontal leg is 0, since there is no horizontal component of the triangle, so, the cosine is 0. Consider the angle itself and the unit circle. There is no horizontal component of the angle: The horizontal component of the angle is 0, so, the cosine of 90° is 0.

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