Find the Zeros of the Function in the Interval $[-2 \pi, 2 \pi]$

question 46

Multiple Choice

Find the zeros of the function in the interval $[-2 \pi, 2 \pi]$ .
- $$f ( x ) = 3 \cos x$$

• A) \(\pm \frac { \pi } { 2 } , \pm \pi , \pm \frac { 3 \pi } { 2 } , \pm 2 \pi\)
• B) \(0 , \pm \frac { \pi } { 2 } , \pm \frac { 3 \pi } { 2 }\)
• C) \(\pm \frac { \pi } { 2 } , \pm \frac { 3 \pi } { 2 }\)
• D) \(0 , \pm \pi , \pm 2 \pi\)

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