If \( \hat{a} \) and \( \hat{b} \) are unit vectors inclined at an ...

If \( \hat{a} \) and \( \hat{b} \) are unit vectors inclined at an angle \( \theta \) then prove that: \[ \tan \frac{\theta}{2}=\frac{|\hat{a}-\hat{b}|}{|\hat{a}+\hat{b}|} \] 📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live