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K748

∑ (v + w) (v  y - w  z) y z = 0

with u:v:w = cosA/2:cosB/2:cosC/2

X(1), X(173), X(174), X(177), X(236), X(7707)

vertices of the Yff central triangle

vertices of the cevian triangle of X(174)
K748a

K748 is the locus of P whose anticevian triangle is perspective with the Tangential mid-arc triangle. See TCCT 6.15.

K748 is the pivotal cubic pK(X18888, X174).

It is the barycentric product of K747 by X(188).

All the cubics in {K201, K365, K747, K748, K761, K1077, K1078, K1079, K1082} are anharmonically equivalent.