Find Any Zeros Of $r$ On the Interval $0 \leq \theta < 2 \pi$

question 106

Multiple Choice

Find any zeros of $r$ on the interval $0 \leq \theta < 2 \pi$ .
$$r = \sqrt { 2 } - 2 \cos \theta$$

• A) zeros: \(\frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 }\)
• B) zeros: \(\frac { \pi } { 4 } , \frac { 7 \pi } { 4 }\)
• C) zeros: \(\frac { \pi } { 2 } , \frac { 7 \pi } { 2 }\)
• D) zeros: \(\frac { 3 \pi } { 2 } , \frac { 5 \pi } { 2 }\)
• E) zeros: \(\frac { \pi } { 8 } , \frac { 7 \pi } { 8 }\)

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