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Solve cos theta+cos 7 theta+cos 3theta+c...

Solve `cos theta+cos 7 theta+cos 3theta+cos 5 theta=0`,

Text Solution

Verified by Experts

The correct Answer is:
`theta = (2n+1)(pi)/(2), (2n+1)(pi)/(4), (2n+1)(pi)/(8)`
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