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Mathematics 7 Online
OpenStudy (anonymous):

Find the value of the given trigonometric function. sec (-300

OpenStudy (mathstudent55):

Use a reference angle to find what this angle corresponds to in the first quadrant.

OpenStudy (anonymous):

This is just sec 60, or opposite of cos 60. cos 60 is 1/2, so sec 60 is 2.

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