यदि $\cos A = \frac{4}{5}$ है,तो $\tan A$ का मान ज्ञात कीजिए।

  • A
    $\frac{3}{4}$
  • B
    $\frac{3}{5}$
  • C
    $\frac{4}{3}$
  • D
    $\frac{5}{3}$

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