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Find Any Zeros Of rr On the Interval 0θ<2π0 \leq \theta < 2 \pi

Question 18

Multiple Choice

Find any zeros of rr on the interval 0θ<2π0 \leq \theta < 2 \pi .
r=3+2cosθr = \sqrt { 3 } + 2 \cos \theta


A) zeros: π6,11π6\frac { \pi } { 6 } , \frac { 11 \pi } { 6 }
B) zeros: 5π6,7π6\frac { 5 \pi } { 6 } , \frac { 7 \pi } { 6 }
C) zeros: 5π3,7π3\frac { 5 \pi } { 3 } , \frac { 7 \pi } { 3 }
D) zeros: π3,11π3\frac { \pi } { 3 } , \frac { 11 \pi } { 3 }
E) zeros: 5π2,7π2\frac { 5 \pi } { 2 } , \frac { 7 \pi } { 2 }

Correct Answer:

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