Wanneer ons bewerkings met telgetalle doen, is dit belangrik om te weet dat nul die identiteitselement van optelling is, terwyl 1 die identiteitselement van vermenigvuldiging is. Wat beteken dit? Wanneer ons ‘n nul tel by enige getal, behou die getal sy identiteit – die nul verander nie die getal se waarde nie. Dieselfde geld as…
Die reële getalstelsel bestaan uit rasionale en irrasionale getalle, en word in hierdie video verduidelik. Rasionale getalle bestaan uit verskeie getalreekse. Eerstens kry ons natuurlike getalle. Natuurlike getalle begin by 1 en ons kan dit skryf as N = {1; 2; 3; 4; …}. Dan het ons telgetalle wat uit al die natuurlike getalle bestaan…
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