Polar Coorinates d Flashcards
1
Q
Draw (r,theta) on an xy graph.
What’s r and how do you draw theta?
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2
Q
X=?
Y=?
r^2 = ?
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7
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8
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9
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10
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11
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12
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13
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14
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15
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16
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17
Q
When do you get a cardioid in limacons?
r=a+bcos(theta)
A
When a and b are the same.
The graph is symmetrical.
18
Q
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19
Q
What happens when a and b are different in a limacons?
r=a+bcos(theta)
A
We get a dimple type thing on the negative x-axis.
20
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21
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22
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23
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24
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25
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26
Q
Formula for woe,i g out the area enclosed by a polar curve
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27
Q
Find the area enclosed by the polar curve r=2
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28
Q
Find the area enclosed by r=sin4(theta), where r>0
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29
Q
Find the area enclosed by r=2+2cos(theta)
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30
Q
Find the area enclosed by the inner loop (when r<0) of r=1+2cos(theta)
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31
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32
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33
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34
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