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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 Preview

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

    csc -7pi/3 radians = ...

    Solution Summary

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