यदि $\tan 20^{\circ}=\lambda$ है,तो $\frac{\tan 160^{\circ}-\tan 110^{\circ}}{1+\left(\tan 160^{\circ}\right)\left(\tan 110^{\circ}\right)}$ का मान ज्ञात कीजिए।

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

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