If \( \sin \theta+\sin \phi=a \) and \( \cos \theta+\cos \phi=b \), find the value of \( \tan \f... VIDEO
If \( \sin \theta+\sin \phi=a \) and \( \cos \theta+\cos \phi=b \), find the value of \( \tan \frac{\theta-\phi}{2} \)https://bit.ly/YTAI_PWAP https://www.pw.live
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