The equilibrium conditions are $\sum F_x = 0$ and $\sum F_y = 0$.
From $\sum F_x = 0$, we get $P - F_{BC} \cos(36.86) = 0$. Solving this equation, we get $F_{BC} = 1.249P$.
From $\sum F_y = 0$, we get $F_{BC} \sin(36.86) - F_{AC} = 0$. Solving this equation, we
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