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

Question

cot(-60) degrees

Answer 1

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