Can someone help me out for the unit circle... What table of values is the right one?

http://math.hhpnet.com/mhf4u1/downlo...ngles%20II.pdf

(look all the way at the bottom)

or

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There are a few differences such as:

cot 60 degrees is either 1/square root 3 or square root 3/3

which is the right one or what should be used when filling out a table such as those ones?