1.

The set of angles between `0` and `2pi` satisfying the equation `4cos^2theta-2sqrt2costheta-1=0` isA. `{(pi)/(12),(5pi)/(12),(19pi)/(12),(23pi)/(12)}`B. `{(pi)/(12),(7pi)/(12),(17pi)/(12),(23pi)/(12)}`C. `{(5pi)/(12),(13pi)/(12),(19pi)/(12)}`D. `{(pi)/(12),(7pi)/(12),(17)/(12),(23pi)/(12)}`

Answer» Correct Answer - B


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