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/sci/ - Science & Math

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>> No.15704561 [View]
File: 624 B, 114x43, Cattura.png [View same] [iqdb] [saucenao] [google]
15704561

i was taking an university entry test simulation and saw this. i have never even seen this before. i dont even know where to start or how expressions like this are called so i cant even google it. may i ask for a bit of help?

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