Find the terminal point on the unit circle determined by 3π2 radians.Use exact values, not decimal approximations.
Question
Find the terminal point on the unit circle determined by 3π2 radians.Use exact values, not decimal approximations.
Solution
The terminal point on the unit circle determined by 3π/2 radians is found by considering the unit circle in the Cartesian coordinate system.
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The unit circle is a circle with a radius of 1 that is centered at the origin (0,0) of the Cartesian coordinate system.
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A radian measure of 3π/2 corresponds to an angle that is 270 degrees counterclockwise from the positive x-axis.
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At this point on the unit circle, the x-coordinate is the cosine of the angle and the y-coordinate is the sine of the angle.
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The cosine of 270 degrees (or 3π/2 radians) is 0 and the sine of 270 degrees (or 3π/2 radians) is -1.
Therefore, the terminal point on the unit circle determined by 3π/2 radians is (0, -1).
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