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OpenStudy (anonymous):
Verify the following identity:
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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):
|dw:1352897355650:dw|
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