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![Solve \( 2 \cos ^{2}(x)-7 \cos (x)+5=0 \) for all solutions.
\[
x=\quad \text { where }
\]
Give your answer as an exact value](https://media.cheggcdn.com/media/058/05877adc-8f23-4df9-8583-d11669b94d6b/php4VCfUD)
Expert Answer
Given by- Factor the left side of the equation.