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Wat gebeur as ek nul by enige
getal tel?
7+0 =

7

8+0 =

8

x+0 =

x

Nul is die identiteitselement van optelling, omdat die getal
dieselfde bly
Wat gebeur as ek nul met
enige getal maal
7x0 =

0

8x0 =

0

x´0 =

0
Enige getal vermenigvuldig met nul is nul
Wat gebeur as ek enige getal ÷ 0?
8¸ 2

8¸ 0

8
= =4
2
daarom is 4 ´ 2=8

8
= = 0?????
0
daarom is 0 ´ 0 ¹ 8

Dus enige getal gedeel deur nul is ongedefinieerd
Wat gebeur as ek 0 ÷ enige getal?
0¸2
0
= =0
2
daarom is 0 ´ 2=0
Dus nul gedeel deur enige getal is nul

0¸x
0
= =0
x
daarom is 0 ´ x = 0
Enige getal tot die mag nul is een?

x =1
0

Enige getal tot die mag nul is gelyk aan 1
Kyk na die video
Wat gebeur as ek 1 met enige
getal vermenigvuldig
7x1 =

7

8x1=

8

x ´1 =

x

Een is die identiteitselement van vermenigvuldiging, omdat die
getal dieselfde bly
Wat gebeur as ek enige getal ÷ 1?
8 ¸1
8
= =8
1
daarom is 8 ´1=8

Dus enige getal gedeel deur een is die getal
1 is dus die identiteitselement vir vermenigvuldiging en
deling
Enige getal gedeel deur enige
getal?
8¸8
8
= =1
8
daarom is 8 ´1=8

Dus ‘n getal gedeel deur homself is altyd 1

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Eienskappe van nul en een

  • 1. Wat gebeur as ek nul by enige getal tel? 7+0 = 7 8+0 = 8 x+0 = x Nul is die identiteitselement van optelling, omdat die getal dieselfde bly
  • 2. Wat gebeur as ek nul met enige getal maal 7x0 = 0 8x0 = 0 x´0 = 0 Enige getal vermenigvuldig met nul is nul
  • 3. Wat gebeur as ek enige getal ÷ 0? 8¸ 2 8¸ 0 8 = =4 2 daarom is 4 ´ 2=8 8 = = 0????? 0 daarom is 0 ´ 0 ¹ 8 Dus enige getal gedeel deur nul is ongedefinieerd
  • 4. Wat gebeur as ek 0 ÷ enige getal? 0¸2 0 = =0 2 daarom is 0 ´ 2=0 Dus nul gedeel deur enige getal is nul 0¸x 0 = =0 x daarom is 0 ´ x = 0
  • 5. Enige getal tot die mag nul is een? x =1 0 Enige getal tot die mag nul is gelyk aan 1 Kyk na die video
  • 6. Wat gebeur as ek 1 met enige getal vermenigvuldig 7x1 = 7 8x1= 8 x ´1 = x Een is die identiteitselement van vermenigvuldiging, omdat die getal dieselfde bly
  • 7. Wat gebeur as ek enige getal ÷ 1? 8 ¸1 8 = =8 1 daarom is 8 ´1=8 Dus enige getal gedeel deur een is die getal 1 is dus die identiteitselement vir vermenigvuldiging en deling
  • 8. Enige getal gedeel deur enige getal? 8¸8 8 = =1 8 daarom is 8 ´1=8 Dus ‘n getal gedeel deur homself is altyd 1