$\tan \frac{\pi}{8}$ નું મૂલ્ય કેટલું થાય?

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

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