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YD
My students found a faster proof than the one in the textbook and I have never been prouder or more annoyed.
馃槷 馃槨 馃槀 5 2 Comment 路 1,058 views
NH
Nadia Haddad

That third attempt was worth it.

YD
Yusuf Demir

Thanks! I鈥檒l write it up properly.