यदि $\sin \theta = \sin 15^{\circ} + \sin 45^{\circ}$,जहाँ $0^{\circ} < \theta < 180^{\circ}$ है,तो $\theta =$ ($^{\circ}$ में)

  • A
    $75$
  • B
    $150$
  • C
    $45$
  • D
    $60$

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