Use the Definitions (Not a Calculator) to Evaluate the Six $- 720 ^ { \circ }$

question 2

Multiple Choice

Use the definitions (not a calculator) to evaluate the six trigonometric functions of the angle. $- 720 ^ { \circ }$

• A) \(\begin{array} { l l l }
• \sin \left( - 720 ^ { \circ } \right) = 1 & \tan \left( - 720 ^ { \circ } \right) \text { is undefined } & \csc \left( - 720 ^ { \circ } \right) = 1 \\
• \cos \left( - 720 ^ { \circ } \right) = 0 & \cot \left( - 720 ^ { \circ } \right) = 0 & \sec \left( - 720 ^ { \circ } \right) \text { is undefined }
• \end{array}\)
• B) \(\begin{array} { l l l }
• \sin \left( - 720 ^ { \circ } \right) = - 1 & \tan \left( - 720 ^ { \circ } \right) \text { is undefined } & \csc \left( - 720 ^ { \circ } \right) = - 1 \\
• \cos \left( - 720 ^ { \circ } \right) = 0 & \cot \left( - 720 ^ { \circ } \right) = 0 & \sec \left( - 720 ^ { \circ } \right) \text { is undefined }
• \end{array}\)
• C) \(\begin{array} { l l l }
• \sin \left( - 720 ^ { \circ } \right) = 0 & \tan \left( - 720 ^ { \circ } \right) = 0 & \csc \left( - 720 ^ { \circ } \right) \text { is undefined } \\
• \cos \left( - 720 ^ { \circ } \right) = - 1 & \cot \left( - 720 ^ { \circ } \right) \text { is undefined } & \sec \left( - 720 ^ { \circ } \right) = - 1
• \end{array}\)
• D) \(\begin{array} { l l l }
• \sin \left( - 720 ^ { \circ } \right) \text { is undefined } & \tan \left( - 720 ^ { \circ } \right) \text { is undefined } & \csc \left( - 720 ^ { \circ } \right) \text { is undefined } \\
• \cos \left( - 720 ^ { \circ } \right) = 1 & \cot \left( - 720 ^ { \circ } \right) = 1 & \sec \left( - 720 ^ { \circ } \right) = 1
• \end{array}\)
• E) \(\begin{array} { l l l }
• \sin \left( - 720 ^ { \circ } \right) = 0 & \tan \left( - 720 ^ { \circ } \right) = 0 & \csc \left( - 720 ^ { \circ } \right) \text { is undefined } \\
• \cos \left( - 720 ^ { \circ } \right) = 1 & \cot \left( - 720 ^ { \circ } \right) \text { is undefined } & \sec \left( - 720 ^ { \circ } \right) = 1
• \end{array}\)

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