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WSKT 212 PAC

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3.6 Bepaal die hoeksnelheid van die<br />

wyser, in radiale/sekonde.<br />

33<br />

Determine the angular velocity of the<br />

hand, in radians/second.<br />

3.7 Bereken die lengte van boog AB. Calculate the length of arc AB.<br />

3.8 Bereken die oppervlakte van die<br />

sirkelsektor wat deur boog AB<br />

onderspan word (dit is die<br />

geskakeerde gedeelte).<br />

3.9 Bepaal die afstand AB in cm.<br />

(ons bedoel die lynstuk wat A en B<br />

verbind)<br />

4.1 Skets r = 2cos θ deur die tabel te<br />

voltooi en die punte te plot:<br />

θ in radiale/ radians 0<br />

r in lengte-eenhede /<br />

distance units<br />

4.2 Skets r 2cos θ<br />

4.3 Skets<br />

Vraag 4/ Question 4<br />

π<br />

4<br />

2<br />

= en r = 4sin(<br />

θ )<br />

met behulp van ‘n rekenaarprogram.<br />

y x<br />

2<br />

= 2 − 9 met potlood en<br />

papier. Kontroleer u grafiek met<br />

behulp van ‘n rekenaarprogram.<br />

4.4 Dit is moontlik om die vergelyking<br />

y x<br />

2<br />

= 2 − 9 na poolvorm te<br />

transformeer:<br />

π<br />

2<br />

Calculate the area of the circle sector<br />

subtended by arc AB (that is the<br />

shaded region).<br />

Determine the distance AB in cm.<br />

(we mean the line segment connecting<br />

A and B)<br />

Sketch r = 2cos θ by completing the<br />

given table and plotting the resulting<br />

points:<br />

3π<br />

π<br />

4<br />

5π<br />

4<br />

Sketch r 2cos θ<br />

3π<br />

2<br />

7π<br />

2π<br />

4<br />

2<br />

= and r = 4sin(<br />

θ )<br />

by means of a computer program.<br />

Sketch<br />

y x<br />

2<br />

= 2 − 9 using pencil and<br />

paper. Check your graph using a<br />

computer program.<br />

It is possible to transform the equation<br />

y x<br />

2<br />

= 2 − 9 to polar form:

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