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Use the even-odd properties of the trigonometric functions to find the exact value of the given expression.

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cot(-60) degrees
asked Nov 9, 2017 in PRECALCULUS by anonymous
reshown Nov 10, 2017 by bradely

1 Answer

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cot(-60) degrees

From the even-odd properties of the trigonometric functions.

cot(-x) = -cotx

cot(-60) degrees = -cot(60)

From division property of trignometry.

=-(cos60)/(sin60)

=-(1/2)/(√3/2)

 =-1/√3

answered Nov 10, 2017 by homeworkhelp Mentor

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