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Graad 11 Wiskunde (WISK) November Vraestel 2 en Memo - 2023 (2) $2.86   Add to cart

Exam (elaborations)

Graad 11 Wiskunde (WISK) November Vraestel 2 en Memo - 2023 (2)

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Graad 11 Wiskunde November Vraestel 2 en Memo: Totaal:  150 punte. Hierdie Vraestel dek die volgende werk: Statistiek | Euklidiese & Analitiese Meetkunde | Trigonometrie Hierdie is 'n oefenvraestel met memorandum bedoel om die leerling se kennis te toets, en sal nie dieselfde vraestel we...

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  • November 16, 2023
  • 19
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers
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GRAAD 11 WISKUNDE
NOVEMBER EKSAMEN VRAESTEL 2

VRAAG 1
1.1 Bereken die volgende met die gebruik van ‘n sakrekenaar:
1.1.1 sin 43 + cos 47 (1)
1.1.2 tan 2 5 0 ° (1)
1.1.3 cot 33⁰ 𝗑 cosec 15⁰ (1)

1.2 As A = 24,3⁰ en B = 22,2⁰, bereken die volgende tot twee desimale plekke:

1.2.1 sin (A + B) (2)
A
1.2.2 sec ⁡( )
2
(2)
1.3 Bereken die volgende sonder die gebruik van ‘n sakrekenaar:

1.3.1 sin 30° + cos 60° (3)
1.3.2 tan 45° × cos 45° (3)
1.3.3 cos 90° + sin 90° (3)
[13]
VRAAG 2
Sonder die gebruik van ‘n sakrekenaar, beantwoord die volgende vrae:
1
2.1 Gegee cos θ = −¿ en 0 ° ≤ θ ≤ 180 °
3
Gebruik die diagram om die volgende waardes te bepaal:

2.1.1 tan (180 ° + θ) (3)
2.1.2 3sin (θ – 90 ° )
(2)

(¿−210° )
sin ¿
2.2 Vereenvoudig die volgende uitdrukking: (¿ x+ 90 °) :
cos(¿ 300 ° )+ cos ¿¿
sin(¿ 360 °+ x) ¿
(5)


1|Page www.summariessa.co.za Wiskunde
Graad 11 November Vraestel 2

,2.3 Bewys dat: tan θ
√ 1
sin 2 θ
−1 = 1 (4)


2.4 Bepaal die algemene oplossing vir: 2sin2 θ = 1 + sin θ (6)
[20]


VRAAG 3
3.1 Skets die volgende op dieselfde assestelsel:

f ( x)=– 2 cos x en g( x )=sin 2 x, vir die interval −90 ° ≤ x ≤180 ° ,

Wys die koördinate van die draaipunte sowel as al die as afsnitte. (5)

3.2 Bestudeer die volgende skets en bepaal die waarde van cosθ−sinθ , sonder die gebruik van
‘n sakrekenaar.




(5)
[10]


VRAAG 4
In die diagram hieronder, die hoek tussen lyn AB en die x -as is . A en D is die x -as afsnit punte
vir lyne AB en CD onderskeidelik. Die koördinate van punt B is: ( √ 3 ; t ) .
^ D = 63,69o
Die afsnit punt E, van lyne AB en CD lê op die y -as. A E
Die vergelyking van die lyn CD word gegee as: 3 x+ 2 y =6
y

C B


E




β α
A O D x




2|Page www.summariessa.co.za Wiskunde
Graad 11 November Vraestel 2

, 4.1 Bepaal die koördinate van E. (2)
4.2 Bepaal die numeriese waarde van α. (2)
4.3 Bepaal die numeriese waarde van β (2)
4.4 Bepaal die vergelyking vir die lyn AB in die vorm van y=mx+c . (3)
4.5 Bepaal die waarde van t . (2)
4.6 Bereken die oppervlakte van ∆ABD. (5)
[16]


VRAAG 5
In die diagram hieronder: ^ o ^
A=5 0 ; C=9
o ^ =2 0 o en AD = 5 m.
0 ; A BD

B


20o




50o
A 5m D C
Bepaal die:
5.1 ^ C met redes.
Waarde van B D (2)
5.2 Die lengte van BC. (5)
[7]


VERSKAF REDES VIR ALLE STELLINGS IN VRAE 6, 7 EN 8.
VRAAG 6
6.1 In die diagram hieronder: A, B, C en E is punte op die omtrek van die sirkel.
Die verlengings van BC en AE ontmoet by punt D. AB = AC. ^ D = 35 ° en ^A1=40 °

A

40o 2 E
1
2


35o D
1 2
1 2 C
B




6.1.1 Bepaal die grootte van die volgende hoeke:
6.1.1.1 ^
C (2)
1

6.1.1.2 ^
A2 (2)
3|Page www.summariessa.co.za Wiskunde
Graad 11 November Vraestel 2

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