Tingling trigons

Geometry Level pending

In a triangle \(ABC\), \(\angle A = 75^\circ, \angle B = 60^\circ , \angle C = 45^\circ\). Also \(CF \) and \(AD\) are the altitudes from \(C\) and \(A\) respectively. If \(H\) is the orthocenter and \(O \) is the circumcenter, find \(\angle HCA\).

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