1.1 Priemfaktore, vierkantswortels en derdemagswortels  (Page 3/3)

3. ‘n Tienhoek het twee binnehoeke van 120° elk. As die oorblywende hoeke almal dieselfde grootte is, dan is elk van hierdie hoeke gelyk aan ...

a) 15°

b) 30°

c) 120°

d) 150°

e) 165°

4. Die laaste syfer van 3 ¹⁹⁹³ is ....

a) 1

b) 3

c) 6

d) 7

e) 9

Assessering

Memorandum

Klasopdrag 1

1.1 48 = 2 ⁴ × 3; 60 = 2² x 3 x 5; 450 = 2 x 3² x 5²;

P 48 = {2, 3} ; P 60 = {2, 3, 5}; P 450 = {2, 3, 5}

2.1 i)== (2 ¹⁰ )

= 2 ⁵

= 32

ii)== (2³ x 5³)

= 2 x 5

= 10

2.2 a) 36

b) 192

c) 1

d) 1

e) 2

f) 17

g) 63

h) 9

i) 10

j) 4

k) 27

l) 8 x ⁶

Huiswerkopdrag 1

1.1= (2 ¹² )

= 2 ⁴

= 16

1.2= (2 ⁴ x 3 ⁴ )

= 2 x 3

= 6

2.1:= 3² = 9

2.2: 5 a ² b ⁵

2.3:=x 3 =

= 1,2

2.4: 4 + 64 = 68

• :2(8) = 16
• :13

2.7: () ² = 54

2.8:= 36

• :2(9) = 18
• : 9 - 27 = -18

KLASOPDRAG 2

21. KGV: Kleinste gemene veelvoud

KGV van 2, 6, 12 :

24 HGV: Hoogste gemene veelvoud

HGV van 24 en 48 :

2. 38 = 2 x 19

57 = 3 x 19

95 = 5 x 19

HGV / HCF = 19

KGV / LCM = 19 x 2 x 3 x 5

= 570

TUTORIAAL 1

1.1:= 8

1.2:

• :2³ . 3 ^7,5
• :3(3 + 4) = 21
• :81
• :16

1.7: 125

2.1: 3 + 2 + 4 = 9 9 ÷ 3 = 3 Ja!

2.2: 324 = 2² x 3 ⁴

2.3:= (2² x 3 ⁴ )

= 2 x 3²

= 18

2.4: Ja! 18 x 18 = 324 /18² = 324

• :9
• : $\frac{6}{2}$ = 3

3.3: $\sqrt{9+\text{16}}$ = $\sqrt{\text{25}}$ = 5

3.4: 4 x ⁸

• :4 ³ = 64
• :3

Verrykingsoefening

1. d

2. c

3. $\frac{\text{180}(\text{10}-2)}{\text{10}}$ = 144º (een hoek) (1 440 – 240) ÷ 8 = 150 (d)

4. b: 3 ¹⁹⁹³ eindig op 1

TOETS 1

• :23, 29
• :1, 2, 3, 6, 12
• :;;;;;;;;4, 6, 12

2. * 2 1 + 2 + 1 + 3 + 1 + 5 + 6 + 3 = 22

3.1: $\sqrt{\text{100}}$ = 10

3.2:; 2 ³ = 8

3.3:; $\sqrt{\frac{\text{25}}{9}}$ = $\frac{5}{3}$ = $1\frac{2}{3}$

3.4: $\sqrt{\frac{4}{\text{100}}}$ = $\frac{2}{\text{10}}$ = 0,2 / $\frac{1}{5}$

3.5: $\sqrt{\text{64}}$ = 8

• :2 x 3 = 6
• :9
• :4 – 1 = 3

4. $\sqrt[3]{2^6{\mathrm{x3}}^3}$ = 2 ² x 3

= 4 x 3

= 12

5. (2) = 2 ² = 4

(4) = 4 ⁴ = 256