Proving the Identity: sinA/(1+cosA)=tan(A/2)

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The discussion centers on proving the trigonometric identity sinA / (1+cosA) = tan(A/2). Participants express confusion about using the double angle formula for cos2ø to solve the problem. One user indicates they are struggling to apply the formulas correctly. Ultimately, the original poster states that the problem has been resolved and no further replies are needed. The conversation highlights the challenges some users face when working with trigonometric identities.
brandon26
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Prove the identity:

sinA / (1+cosA) = tan (A/2).

Im going no where with this, please help?:confused: :confused:
 
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use the double angle formula for cos2ø.
 
Sorry I don't understand. And I am trying to apply the double angle formulae but I am just getting confused.
 
Problem solved...No need to reply
 

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