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Mathematics 30 Online
OpenStudy (anonymous):

Write the values of the trigonometric functions that are defined for theta=-270 degrees. sec(-270 degrees) a. 0 b. is undefined c. 1 d. -1

OpenStudy (cwrw238):

sec theta = 1 / cos theta cos -270 = cos 90 = 0 sec 90 = 1/0 which is undefined b

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