MCQ
If y = $(\cos x)^{(\cos x)^{(\cos x)}}$, then $\frac{ d }{ d x}$ = ______.
  • $\frac{-y^2 \tan x}{1-y \log \cos x}$
  • B
    $\frac{-y^2 \tan x}{1+y \log \cos x}$
  • C
    $\frac{y \tan x}{1+y \log \cos x}$
  • D
    $\frac{y \tan x}{1-y \log \cos x}$

Answer

Correct option: A.
$\frac{-y^2 \tan x}{1-y \log \cos x}$
A

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