MCQ
यदि $y=\cos (\log x)$ तो $\frac{d y}{d x}=$
  • A
    $-\sin (\log x)$
  • $\frac{-\sin (\log x)}{x}$
  • C
    $\frac{\cos (\log x)}{x}$
  • D
    $-\sin (\log x) \log x$

Answer

Correct option: B.
$\frac{-\sin (\log x)}{x}$
B

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