यदि $\sec ^{2} \theta+\tan ^{2} \theta=\frac{13}{12}$ है,तो $\sec ^{4} \theta-\tan ^{4} \theta$ का मान ......... है।

  • A
    $\frac{12}{13}$
  • B
    $\frac{13}{12}$
  • C
    $1$
  • D
    $\frac{1}{12}$

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