\[ \int_{-x / 2}^{x / 2} \sqrt{\cos ^{2021} x-\cos ^{2023} x} d x \] (a) \( \frac{2}{2023} \) (b...

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\[
\int_{-x / 2}^{x / 2} \sqrt{\cos ^{2021} x-\cos ^{2023} x} d x
\]
(a) \( \frac{2}{2023} \)
(b) \( \frac{2}{2025} \)
(c) \( \frac{4}{2025} \)
(d) \( \frac{4}{2023} \)
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