SOLUTION: prove this identity 1+ sin x/ cos x +cos x/ 1 + sin x = 2secx

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Question 1057128: prove this identity
1+ sin x/ cos x +cos x/ 1 + sin x = 2secx
Answer by ikleyn(52786)   (Show Source): You can put this solution on YOUR website!
.
prove this identity
1+ sin x/ cos x +cos x/ 1 + sin x = 2secx
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

 =  =  = 

 =        ( <--- use  = 1 )

=  =   =  =  = 2*sec(x).


QED.


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