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ChallengeSuperchallengeAdvanced Number Theory

Advanced Number Theory · Superchallenge problem

In triangle ABCABC, cevians ADAD, BEBE, CFCF are concurrent, with DD on BCBC, EE on CACA, and FF on ABAB. Given that BD:DC=2:3BD:DC=2:3, AF:FB=5:4AF:FB=5:4, and CA=22CA=22, find AEAE.