MCQ
cos 15° - sin 15° का मान है
  • A
    $-\frac{1}{\sqrt{2}}$
  • B
    $\sqrt{2}$
  • C
    $-\sqrt{2}$
  • $\frac{1}{\sqrt{2}}$

Answer

Correct option: D.
$\frac{1}{\sqrt{2}}$
(D) $\frac{1}{\sqrt{2}}$

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