how do you simplify (1-tanθ/2)/(1+tanθ/2)
need help exam tomorrow
1. Substitute $\displaystyle \tan \frac{\theta}{2} = \frac{\sin \frac{\theta}{2}}{\cos \frac{\theta}{2}}$.
2. Simplify by multiplying numerator and denominator by $\displaystyle \cos \frac{\theta}{2}$.
3. Multiply the numerator and denominator of the above resulting expression by $\displaystyle \cos \frac{\theta}{2} - \sin \frac{\theta}{2}$.
4. Simplify by applying the Pythagorean Identity and a Double Angle formula.