Converting Radians to Surds: A Helpful Table for Complex Number Calculations?

[cmcc3119]

Hi There,

Can someone please tell me where I can find a table/ data that converts radians to surds. I don't know what to call it but, for instance to tan^-1(-1) = -Pi/4 and, cos(-pi/6) = root3/2 ?

Thank you :)

 

[Defennder]

http://www.sosmath.com/tables/trigtable/trigtable.html

Do a google search for "Trigonometry tables" or something like that.

 

[cmcc3119]

Thanks so much for that :)