समीकरण $\sec x + \tan x = 2 \cos x$ के मुख्य हल हैं

  • A
    $\frac{\pi}{6}, \frac{5 \pi}{6}$
  • B
    $\frac{\pi}{6}, \frac{\pi}{20}$
  • C
    $\frac{\pi}{6}, \frac{2 \pi}{3}$
  • D
    $\frac{\pi}{6}, \frac{\pi}{12}$

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