If-the-straight-lines-a-i-z-a-i-z-b-i-0-i-1-2-3-where-b-i-are-real-are-concurrent-then-b-i-a-2-a-3-a-2-a-3-is-equal-to-

Question Number 140445 by EnterUsername last updated on 07/May/21

If the straight lines {\bar{a}}_{i} z + a_{i} \bar{z} + b_{i} = 0 (i = 1, 2, 3), where

b_{i} are real, are concurrent, then Σ b_{i} (a_{2} {\bar{a}}_{3} - {\bar{a}}_{2} a_{3}) is

equal to_____.