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Compound Angles

Quick practice

Question 1 of 5

Which of the following is the general solution of \cos 5 \theta=\cos 3 \theta

A

\frac{(2 n+1) \pi}{10} or  \frac{n \pi}{4}

B

\frac{n \pi}{4} or  m \pi

C

\frac{(2 n+1) \pi}{5} or  \frac{n \pi}{2}

D

\frac{(2 n+1) \pi}{20} or  \frac{n \pi}{8}

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