#### Heresy

##### Member

- Joined
- Nov 13, 2017

- Messages
- 103

- Gender
- Male

- HSC
- 2019

Given that 0 < x < Pi/4, prove that tan(Pi/4 + x) = cosx + sinx/cosx - sinx

I got this problem for

**homework**on the leadup to an exam coming up in 3 weeks - someone help please?

**P.S. Im sorry that I don't know how type Pi**....