Preeta
Preeta uploaded a new version of File:2. Congruence class image2.png
17:27
{{Information |Description ={{en|1=2. Congruence class image2}} |Source =2. Congruence class image2 |Author =ITfC |Date =01-02-19 |Name = |Alt_names = |Teaches = |Based_on_url = |Requ...
17:09
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