Identities: sin2x/1+cos2x=tanx

[Hilda]

hey, I'm having a little bit of trouble doing identities can anyone help me please?
sin2x/1+cos2x=tanx

 

[stapel]

hey, I'm having a little bit of trouble doing identities can anyone help me please?
sin2x/1+cos2x=tanx

As posted, the equation is as follows:

. . . . .\(\displaystyle \dfrac{\sin(2x)}{1}\, +\, \cos(2x)\, =\, \tan(x)\)

Was this what you meant?

When you reply, please include a clear listing of your efforts so far. Thank you!

 

[Deleted member 4993]

hey, I'm having a little bit of trouble doing identities can anyone help me please?
sin2x/1+cos2x=tanx

If you meant:

\(\displaystyle \dfrac{sin(2x)}{1+cos(2x)} \ = \ tan(x)\)

You should have written your problem as:

sin(2x)/[1+cos(2x)] = tan(x)

If it is then:

Can you expand sin(2x) = ?