16. which is the parametric form of the polar equation r 30? a point) Ox 36 cos

Question

16. which is the parametric form of the polar equation r 30? a point) Ox 36 cos 30 sin 36 cos 8 30 sin 3 cos y 3sin 17. Which is the polar form of the parametric equationsx 2 cos 6 andy 2 sin 0? a point) Or 2 Or 20 Or m 4 cos e sin e 18. Which is the polar form of the parametric equations x 2t and y 12? a point Or 4 sec Or 4 sec Or 4 tan sec e 19. A bowling ball is rolled down the alley with a constant velocity of 1.4 m/sec. at an angle of 86 to the starting line. The position of the person throwing the bowling ball can be represented by the point (0.00. Where is the ball after 8 seconds? O (0.1.1.4) O (0.6.8.0) O (0.8.11.2) O (11.2,0.8)

Explanation / Answer

r=-3 theta

x=-3theta cos theta

y=-3 theta sin theta

squaring and adding them we get

x2+y2=9 theta2(cos2theta + sin2theta)

x2+y2=9 theta2

r2=9 theta2

r=-3 theta

correct option is second .

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