Question 36
Having drawn the triangle with vertices $A, B, C$, we are asked to graphically determine the point $P$ such that
$$
\widehat{PAB} = \widehat{PBC} = \widehat{PCA}
$$
Express a trigonometric function of this angle $\widehat{PAB}$ in terms of the trigonometric functions of the angles $A, B$ and $C$.
$$
\widehat{PAB} = \widehat{PBC} = \widehat{PCA}
$$
Express a trigonometric function of this angle $\widehat{PAB}$ in terms of the trigonometric functions of the angles $A, B$ and $C$.