यदि $\theta$ एक न्यून कोण है,$\cosh x = K$ और $\sinh x = \tan \theta$,तो $\sin \theta =$

  • A
    $\frac{K}{K^2+1}$
  • B
    $\frac{K^2+1}{K^2+2}$
  • C
    $\frac{\sqrt{K^2-1}}{K}$
  • D
    $\frac{\sqrt{K^2-1}}{\sqrt{K^2+1}}$

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