If $y = \log \sqrt{\tan x}$,then the value of $\frac{dy}{dx}$ at $x = \frac{\pi}{4}$ is

  • A
    $1$
  • B
    $-1$
  • C
    $\frac{1}{2}$
  • D
    $0$

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Similar Questions

Let $f$ be a continuous function satisfying $f'(\ln x) = \begin{cases} 1 & 0 < x \le 1 \\ x & x > 1 \end{cases}$ and $f(0) = 0$. Then $f(x)$ can be defined as:

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If $y = (1 + x^2)\tan^{-1}x - x,$ then $\frac{dy}{dx} = $

$\frac{d}{dx}[\sin^n x \cos nx] = $

For some constants $a$ and $b$,find the derivative of $(ax^2 + b)^2$.

$\frac{d}{d x}\left(\frac{2^x+3^x}{4^x}\right) = $ . . . . . .

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