- 29
- 0
Prove that
[tex]\sec x + \tan x = \tan \left (\frac{\pi}{4} + \frac{x}{2}\right )[/tex]
I've got to
[tex]\sec x + \tan x = \frac{1+\sin x}{\cos x}[/tex]
and then I was stuck. Tried half angle but it didn't seem to work.
Help please.
[tex]\sec x + \tan x = \tan \left (\frac{\pi}{4} + \frac{x}{2}\right )[/tex]
I've got to
[tex]\sec x + \tan x = \frac{1+\sin x}{\cos x}[/tex]
and then I was stuck. Tried half angle but it didn't seem to work.
Help please.