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Mathematics 13 Online
OpenStudy (anonymous):

Verify the following identity:

OpenStudy (anonymous):

\[\frac{ \cos x }{ 1 + \sin x } + \frac{ 1 + \sin x }{ \cos x } = 2\sec x\]

hartnn (hartnn):

can u cross multiply ?

OpenStudy (anonymous):

I'm not sure

hartnn (hartnn):

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