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# Exact value of Cot30 Watch

1. Could anyone tell me how to get the exact value of cot30, using a table of exact values? I have the table of values for sin, cos and tan I just don't know what to so with it!
2. (Original post by Emilyrose1210)
Could anyone tell me how to get the exact value of cot30, using a table of exact values? I have the table of values for sin, cos and tan I just don't know what to so with it!
You know that cot(x)= 1/tan(x) = cos(x)/sin(x), so....does that give you a clue?

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3. If cotx=1/tans, cot30=1/tan?
4. (Original post by Emilyrose1210)
Could anyone tell me how to get the exact value of cot30, using a table of exact values? I have the table of values for sin, cos and tan I just don't know what to so with it!
so ?
5. Thank you! I know it's quite an easy question but I was ill for a while and missed a lot of school so just trying to catch up and teach myself!

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Updated: July 5, 2014
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