Friday
April 18, 2014

Homework Help: Math/Trig

Posted by Leah on Monday, June 11, 2012 at 5:03am.

How would I evaluate these trig functions without using a calculator? U:

sin(-13π/6)
cot 11π/6
cot(-14π/4)
sec 23π/6

Thanks in advance ^^; and if you'd tell me step by step on how to do problems like these I'd be grateful :D

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