In a field plane PG(2, F), a line ax+by+cz = 0, not through the vertices of the triangle of reference ABC, intersects the sides BC, CA, AB in the points X, Y, Z, respectively. Let P = YBn ZC, Q = ZCn XA, and R = XANYB. Show that AP, BQ, and CR are concurrent, and find the coordinates of the point of concurrency.

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter1: Line And Angle Relationships
Section1.1: Early Definitions And Postulates
Problem 36E: Consider noncoplanar points A, B, C, and D. Using three points at a time such as A, B, and C, how...
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In a field plane PG(2, F), a line ax+by+cz
= 0, not through the vertices of the triangle
of reference ABC, intersects the sides BC, CA, AB in the points X, Y, Z, respectively.
Let P = YB ZC, Q = ZCnXA, and R = XANYB. Show that AP, BQ, and CR
are concurrent, and find the coordinates of the point of concurrency.
Transcribed Image Text:In a field plane PG(2, F), a line ax+by+cz = 0, not through the vertices of the triangle of reference ABC, intersects the sides BC, CA, AB in the points X, Y, Z, respectively. Let P = YB ZC, Q = ZCnXA, and R = XANYB. Show that AP, BQ, and CR are concurrent, and find the coordinates of the point of concurrency.
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