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Location and Reference Angle of Trigonometric Function

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Indicate the quadrant location of the angle, the algebraic sign, reference angle and numerical value.

1. csc -( 7pi / 3)

2. cos ( -2,192°)

3. tan ( 1,178°)

4. sin ( 39pi / 11)

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Solution Summary

The expert examines location and reference angles of trigonometric functions. Step-by-step solutions are provided.

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(1) -7pi/3 radians = IV quadrant, csc -7pi/3 radians is negative, the reference angle = pi/3 radians and

csc -7pi/3 radians = ...

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