$\int_0^{\pi /2} {\left( {\frac{\theta }{{\sin \theta }}} \right)^2 d\theta = } $

  • A
    $\pi \log 2$
  • B
    $\frac{\pi }{{\log 2}}$
  • C
    $\pi $
  • D
    इनमें से कोई नहीं

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