NPC is also a part of locus. For P lies on Nine point circle of ABC, Q lies on the orthic axis. (B.Gibert)
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Let ABC be a triangle with P, Q are two points on Euler line of ABC. A',B',C' are inverse images of A,B,C through circle diame...
NPC is also a part of locus. For P lies on Nine point circle of ABC, Q lies on the orthic axis. (B.Gibert)
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