Find the Point(s) of Intersection of the Curves $r = 2$

question 14

Multiple Choice

Find the point(s) of intersection of the curves $r = 2$ and $r = 4 \cos \theta$ .

• A) \(\left( 2 , \frac { \pi } { 6 } \right) , \left( 2 , - \frac { \pi } { 6 } \right)\)
• B) \(\left( 2 , \frac { \pi } { 4 } \right) , \left( 2 , - \frac { \pi } { 4 } \right)\)
• C) \(\left( 2 , \frac { \pi } { 3 } \right) , \left( 2 , - \frac { \pi } { 3 } \right)\)
• D) \(\left( 2 , \frac { \pi } { 6 } \right)\)
• E) \(\left( 2 , \frac { \pi } { 3 } \right)\)

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Definitions:

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The phenomenon in which people are less likely to offer help to a victim when other people are present.

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A sociopsychological phenomenon whereby a person is less likely to take responsibility for action or inaction when others are present, often leading to a lack of action in group situations.

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A person’s identification with a racial or ethnic group.