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anonymous
 one year ago
Find all solutions to the equation in the interval [0, 2π).
cos 2x  cos x = 0
anonymous
 one year ago
Find all solutions to the equation in the interval [0, 2π). cos 2x  cos x = 0

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0is it 1. \[\cos^2(x)  \cos(x) = 0\] or 2. \[co(2x)  \cos(x) = 0\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1use a double angle identity
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