(1/1-sinx)-(1/1+sinx)=2sectan

i got stumped on this one

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- Nov 5th 2009, 04:31 PMvalvani need help proving the indentity
(1/1-sinx)-(1/1+sinx)=2sectan

i got stumped on this one - Nov 5th 2009, 04:42 PMalexmahone
- Nov 5th 2009, 04:52 PMvalvan
can you explain further how you got to

= http://www.mathhelpforum.com/math-he...99e50587-1.gif - Nov 5th 2009, 06:59 PMmathaddict
- Nov 5th 2009, 09:49 PMpacman
http://www.mathhelpforum.com/math-he...393dc78c-1.gif = Numerator/Denomenator

Numerator = (1 + sin x) - (1 - sin x) = 1 + sin x - 1 + sin x = ?