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Does sin of pi exist?

Published in Trigonometry 1 min read

Yes, the sine of pi exists, and it's equal to 0.

Explanation

The sine function, denoted as sin(x), is a fundamental trigonometric function. When x is equal to pi (π), which represents approximately 3.14159 radians or 180 degrees, the sine of pi is defined.

  • Radians and Degrees: Pi (π) is commonly used to express angles in radians. It is equivalent to 180 degrees.

  • Unit Circle: On the unit circle, an angle of π radians (180 degrees) corresponds to the point (-1, 0). The sine of an angle is represented by the y-coordinate of this point. Since the y-coordinate at π is 0, sin(π) = 0.

  • Sine Wave: If you visualize the sine wave, it crosses the x-axis at multiples of π. Therefore, sin(π) = 0, sin(2π) = 0, sin(3π) = 0, and so on.

Mathematical Representation

sin(π) = 0

Conclusion

Therefore, the sine of pi indeed exists and is equal to 0. This is a well-defined value within the trigonometric functions.

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