यदि $5 \cos A = 4 \sin A$,तो $\tan A = \ldots$

  • A
    $\frac{1}{20}$
  • B
    $\frac{1}{4}$
  • C
    $\frac{4}{5}$
  • D
    $\frac{5}{4}$

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यदि $\sin 5 \theta = \cos 5 \theta$ है,तो $\theta$ का मान .......... है।

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