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Neviem ci tomu chapem.. Na množine X = {1,2,3,4} sú dané dve relácie R1 = {(1,1),(1,2),(3,4),(4,2)} a R2 = {(1,1),(2,1),(2,2),(3,1),(4,4)} . Nájdite relácie (a) R1 ◦ R1 Odpoved: {(1,1)(1,2)(3,2 )…
Dobrý deň, potreboval by som pomôcť s touto úlohou. V daných sústavách určte počet fáz a zložiek: a) roztok jódu v benzéne b) suspenzia hydroxidu železitého vo vode
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