Prove this identity

backseatlov3

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Dec 21, 2008
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I need help proving this identity, I haven't done this in over a year =[

(sin x)(sec x) = tan x
 
Two of the basic reciprocal identities include...
secx=1cosx\displaystyle \sec x = \frac{1}{\cos x} and

tanx=sinxcosx\displaystyle \tan x = \frac{\sin x}{\cos x}

Corrected, thanks to mmm4444bot.
 


Loren meant to type the identity for sec(x).

sec(x)  =  1cos(x)\displaystyle sec(x) \; = \; \frac{1}{cos(x)}

 
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