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Question: 1 / 400

What is the value of sin(90°)?

0

0.5

1

The value of sin(90°) is 1 because, in the context of the unit circle, the sine function corresponds to the y-coordinate of a point on the circle. At an angle of 90 degrees, the point on the unit circle is located at the coordinates (0, 1). This means that the y-coordinate, which represents the value of the sine function, is 1.

In trigonometric terms, this can also be understood via the definition of the sine function as the ratio of the length of the opposite side to the hypotenuse in a right triangle. At an angle of 90 degrees, the entire length of the hypotenuse is represented by the opposite side, making the ratio equal to 1.

Thus, the correct value for sin(90°) is indeed 1.

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