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Prove 2 ......Prove / .....
(05-27-2014), (05-26-2014)
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; 05-26-2014 05:37 PM
(05-27-2014), (05-26-2014), (05-26-2014), (05-26-2014)
cot x=cot(3/4 pi -x) For example is the statement c cot pi/4=cot (3/4 pi -pi/4) True
cot x=cot(3/4 pi -x) For example is the statement c cot pi/4=cot (3/4 pi -pi/4) True = + -
: 2 (0 2 )
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