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January 26, 2015

January 26, 2015

Posted by **suvaion** on Thursday, February 16, 2012 at 9:56am.

- math -
**Bosnian**, Thursday, February 16, 2012 at 11:15amIn google type :

csc20° − cot 40°

When you see list of result click on :

What is csc(20) - cot(40)? or csc(pi/9) - cot(2pi/9)

You will see solution step by step.

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