Use the trigonometric form of Ceva’s theorem to prove that the three Cevian lines in the definition of isogonal conjugate are concurrent.

Answer 1

Here's a link to the solution...hope it helps....

Ceva’s Theorem Application

By

Shadreck S Chitsonga

http://jwilson.coe.uga.edu/EMAT6680Fa06/Chitsonga/ceva%27s%20theorem/APPLICATION.htm