If $2{\sin ^2}\theta = 3\cos \theta ,$ where $0 \le \theta \le 2\pi $, then $\theta = $

  • [IIT 1963]
  • A

    $\frac{\pi }{6},\frac{{7\pi }}{6}$

  • B

    $\frac{\pi }{3},\frac{{5\pi }}{3}$

  • C

    $\frac{\pi }{3},\frac{{7\pi }}{3}$

  • D

    None of these

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  • [IIT 1963]

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