Eli5: why sine of an angle or cos of an angle, can not be greater than unity?

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Eli5: why sine of an angle or cos of an angle, can not be greater than unity?

In: Mathematics

4 Answers

Anonymous 0 Comments

Because that’s how they are defined based on the unit circle.

The unit circle is a circle with a radius of 1 and centered at (0,0). Sine and cosine are defined using points on the circle, which by definition can only have values between -1 and 1.

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