यदि $\sec x + \tan x = 2$,जहाँ $0 < x < \frac{\pi}{2}$ है,तो $\sin \frac{x}{4}$ का मान ज्ञात कीजिए।

  • A
    $\frac{1}{\sqrt{10+3 \sqrt{10}}}$
  • B
    $\frac{1}{\sqrt{2(10+3 \sqrt{10})}}$
  • C
    $\frac{1}{\sqrt{10-3 \sqrt{10}}}$
  • D
    $\frac{1}{2 \sqrt{10-3 \sqrt{10}}}$

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