Sin 1 is approximately equal to 0.84147, assuming the angle is measured in radians.
Explanation:
The sine function (sin) takes an angle as input and returns a value between -1 and 1. It's crucial to know whether the angle is expressed in degrees or radians.
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Radians: In most mathematical contexts, especially in calculus and higher-level mathematics, angles are measured in radians. If you see "sin 1" without any indication otherwise, it's generally assumed to mean sin(1 radian). Using a calculator, sin(1 radian) ≈ 0.84147.
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Degrees: If the angle is measured in degrees, then sin 1° (sine of 1 degree) is a very small value, approximately 0.01745. This is because 1 degree is a very small angle compared to 1 radian (which is approximately 57.3 degrees).
Therefore, unless otherwise specified, sin 1 refers to sin(1 radian) ≈ 0.84147.
